Unable to make payment

SAME PROBLEM! (NOVEMBER 10,2018)

Tried every available method and no method is working for me at all and everything is updated! Very frustrating!

Credit card not valid problem.  I've been paying my bill through the website for years the same way.  This is frustrating and not acceptable.  Last billing cycle worked fine.  So it would be nice to hear an offiicial update from the support team.

I saw this issue going on a few months ago. We'd need you to Community-2153​ and have one of our Team of Experts or T-Force folks file a Help Desk ticket. That'll be the way to get this resolved.

Their idiot CEO spends too much time with trump.

Having this issue still in 2019. I've attempted to enter many different card numbers, through several different browsers, but still getting the same error message. I reached out to a rep via chat, and was advised that there is an issue with the payment system that could take a few hours to fix. Also, it appears that all of my saved card information has been deleted, so I'm not able to make a payment that way either.

I have the same problems too. Tried on Edge, Chrome Firefox. But if I'm using the Chrome autoload the credit card number, the error went away. The next problem i have now is unable to click Save and Continue. It remained greyed out and I can't go any further. Same goes to all other browsers and handphones i tried. It's ridiculous!

I've encountered this in the past (some year ago) as well as today. The current ios app doesn't allow hyphens in the cc# field, automatically defaults to numeric key entry (no hyphen available), and will truncate the string even if you try to paste in the full number including hyphens. However, if you use the web login after giving up on the mobile app, you'll find the cc# field is configured to automatically insert hyphens and will accept the string in that format, which is apparently what their backend system is expecting. Bottom line is, using the mobile app to try to pay by cc will fail due to this misconfiguration.

I agree with the above comments that this is a fundamental issue that needs immediate attention.The term "embarrassing" comes to mind.

They are providing best services i have an problem before one year they solved my problem quickly. will share more info here.

Just ran into an issue today that sounds exactly the same, I entered 3 different valid card numbers, both Visa and Discover, into 3 different browsers, and was not able to successfully validate a card. Also the T-Mobile App seems to be down. This is for a prepaid plan.

I ended up having to go through the 611 payment over phone service, which worked well enough. Hopefully this is a temporary re-emergence of this issue and I can set up auto-pay later.

I have solved my problem and hope to help everyone.
Let me talk about my situation first: I changed my number a month ago. I have used the previous number for nearly three years without any problems. The problem was the first recharge after I changed my number. t mobile Card number is invalid. Intenta nuevamente.
mmmmmmmm......I entered the account with the previous number and deleted all registered credit cards. Then enter the new (current) number to add recharge, no problem at all! ! ! !
When you want to change to a new number, the clerk should remind you to log in to your account to delete all credit cards. After all, you don't use this account anymore, do you?