AI
A screenshot of a successful ChatGPT payment is not a how-to guide for Claude. Engineering and content teams in Taiwan often hit the same snags again on their second product.
A receipt from an in-store purchase cannot be used to ask customer support about a web subscription. A virtual card mainly helps you take the web route that requires entering a card number. Many people succeed with an in-app purchase in ChatGPT for iOS and assume the same process can be copied to Claude, but Claude's web subscription and in-app purchase are two different payment systems. In-app purchases are collected by the store, while web subscriptions are charged directly by the merchant to the card issuer. If your card number is declined on the website but you take the store's purchase record to customer support, the information on the two sides simply does not match up. The role of a virtual card is to give you a payment tool on the web route that you can manage and troubleshoot independently. It will not change the merchant's risk-control rules, but it lets you clearly see which step is stuck when something fails.
If tool fees are mixed with weekend dinners on the same dual-currency card, reconciling at the end of the month turns into a guessing game. In the App, viewing notifications by card at least lets you separate them. Engineering teams often subscribe to several AI services at once. If they are all tied to the same physical card, the bills get mixed together and are hard to split, and risk control triggered by any one service may affect the other subscriptions. With an MP virtual card, you can open a separate card in the App for tools like Claude, set a spending limit, and freeze it when needed. Every transaction comes with a real-time notification, so you can see at a glance how much each service charged. This is not about getting around anything; it turns tool spending into a manageable item instead of a hidden cost buried in everyday expenses.
The whole process happens in the MP App. You don't need to register anything on our website. Here are the official four steps:
Once the card is enabled, you get a set of virtual card numbers that you can enter directly on the Claude web subscription page. The MP Card is an instant virtual card, suited to online payments; if you also need a physical card, MP offers one for in-store spending and ATM use. When you spend, supported crypto assets are converted to the local currency automatically, and funds are held within a regulated trust framework. In the app you can manage spending limits, freeze the card, and get real-time transaction alerts. These features let you keep track of subscription charges as they happen and pause the card when needed.
The merchant page says it failed and the app shows no attempt, versus the app shows an attempt and the merchant says it succeeded — these are two different situations. Get them aligned before retrying. The first usually means the request never reached the issuer: perhaps the card number was entered wrong, or the expiry date or security code was filled in incorrectly, or the merchant page stopped before submitting because another field failed validation. In that case, check the transaction history in the app first. If there is no such attempt at all, the problem is on the merchant side or in the input, not with the card itself. The second situation is when the app shows a transaction attempt but the merchant page reports failure. This may be the merchant's risk rules temporarily blocking it, or extra verification being required. In this case, don't retry several times in quick succession, or you may trigger stricter checks. First confirm in the app that the card is in normal status and that the limit is sufficient, then compare the merchant's error message to decide the next step. If the two sides don't match, treat the transaction history in the app as authoritative, and keep screenshots for follow-up troubleshooting.
Common local payment methods in Taiwan each have their limits for overseas subscriptions. Here are the usual pain points for comparison:
| Payment method | Common pain points |
|---|---|
| JKOPay / LINE Pay | Works well at convenience stores and local e-commerce, but almost never accepted for overseas subscriptions, US-region accounts, or ad platforms. |
| Taiwan-issued credit cards | Some foreign merchants' risk controls decline them, or they require 3DS / SMS verification. US-region merchants are especially unreliable. |
| Convenience-store payment code / ATM transfer | Only works for local bills. Cannot be linked to ChatGPT, Claude, or ad accounts. |
These methods are convenient for local spending, but often fall short on overseas website subscriptions that ask for a card number. The MP virtual card offers another option, letting you use a separate card number for this kind of spending. Note that a virtual card does not guarantee passing any merchant's risk controls, nor does it replace identity verification the merchant requires. For fees, always refer to what the App shows in real time and to help.mp.net. This site does not quote prices.
When paying for a Claude subscription with a virtual card, there are a few things to keep in mind. First, a virtual card is a payment tool; it does not change the merchant's subscription rules, refund policy, or seat verification requirements. Second, make sure you complete identity verification in the App and confirm your wallet balance is sufficient, so a charge doesn't fail due to insufficient funds. Third, if the merchant requires 3DS verification, the virtual card may not be able to complete it; in that case, contact the merchant to confirm whether another verification method is available. Fourth, do not share your card number with others, and check transaction notifications in the App regularly. Finally, for any fees, limits, or card-opening conditions, refer to what the App shows or check help.mp.net. This site does not provide specific rates or card-opening amounts. If you run into problems, first compare the records on both the merchant side and the App side, then decide whether to retry or contact support.
Seat counts and uniform invoice (統一發票) verification are merchant rules; a virtual card does not replace them.
In-app purchases are billed by the store, which usually doesn't accept a card number entered directly. Virtual cards are mainly used for web subscriptions.
For fee information, refer to what's shown in the MP App and help.mp.net. This site does not quote prices.
You can manage card status in the MP App. Follow the instructions in the App or check help.mp.net.
MP
Your next step isn't filling out another form in a browser—it's installing the app so card issuance and card management are in one place.