Making a purchase and having your card declined is very embarrassing. Among the various errors that can cause this is error 51. Error 51 on the card is the most recurrent and common. In addition to this, there are several other mistakes that make you feel ashamed when paying for your purchases.

The error numbering was created by the network of card machines, Cielo. In order to standardize some of these problems, various numbers have been assigned. These numbers detail errors that happen with the network, connection, and even the card itself. 

Furthermore, in today's article we are going to clear up error 51 and a few more for you. Check out!

Error 01 occurs when the card issuer does not authorize the purchase. Normally, the bank recognizes a suspicious purchase and blocks it for security reasons. This happens, in general, when you make a purchase with a much higher value than the ones you usually make.

This error is similar to number 01. However, in addition to being linked to a suspicious transaction, it could also be a lack of limit. So you can either increase your limit or contact your bank.

If your card is expired or has an incorrect expiration date, code 54 will appear. It is very common to encounter this problem due to typing errors. That way, it's always good to check with your bank if your card is still valid and up to date.

Error 96 is one of those that doesn't necessarily have to do with your card. This is because it happens when there is a communication problem between the machine and the credit card flag. In this case, the solution is to check the machine's internet connection. As a last resort, it is necessary to contact the call center.

Error 51 on the card is extremely recurrent. The code that appears when the sale is not authorized is 51. Usually due to a card limit or suspicious transaction.

Here and in all other problems, the best solution is always to check the situation with your bank. Either by app or phone, contact the Call Center to understand.

Finally, now you know the error 51 on the card and you already know what to do. In addition, you already know some other mistakes that can happen during your purchases. The main tip is to always keep an eye on your card application, if you have one.

There you access all the information and understand if the limit is running out, for example. Besides, suspicious transactions we don't have much to do. The tip is when using the card online, use only the virtual card and then delete it.

Also check out our recommended article on credit card denied and understand the reasons.