Unable to make payment

My issue somehow fixed itself two days later for no reason at all. I had tried Firefox and Chrome and both had not worked, but now they work. Weird.

That's great news that yours is working @mad_cow .

Has anyone checked out the payment option to see if it's working? Please keep us posted.

Same issue when making a payment "Enter a valid card number" keep displaying in red.  I've tried Firefox and Edge browsers and different credit cards.  But making a payments using my iPhone appears to be working.

It seems those new "green" TMobil cards are useless thru the TMobil system. I spent 50.00 to pay for another month of service at a Walgreen's store and tried to activate it thru phone, TMobil app, and even thru the chat with a representative and it couldn't go thru with them trying to activate it themselves The manager at the store where I bought it said it was processed the right way, and they don't refund money. The new TMobil green cards come with a 15 number pin and not with the usual 10 like before, so it seems to me that their system is not up to date and it's screwed. I talked to a representative for a second time and he told me that he was going to credit me 50.00 for the next month.I just came to check my TMobil account after midnight to see if I was credited for those 50.00 as their representative said and it hasn't been done, and my phone service expires in about 12 hours. It's unbelievable how a big corporation like TMobil can't tackle and solve a problem within their system.

I posted this for anyone who has the same issues and see that it's not an isolated incident!

I'm having exactly the same issue as well. I am on Windows 7 and have tried both Chrome and Firefox (both are fully updated). I cleared my history and cache on Chrome, and it still comes up with the message in red "Enter a valid credit card number" when I try to enter my details. I tried another card, but got the same result. Both cards I tried were 16 digit Visa card number, if that makes any difference. I will try and figure out how to pay on the phone app, but it is much more convenient for me to pay on the computer. Please let me know if there's any additional info I can provide.

Like the previous comment this is the second month that your system will not take a payment method using Chrome or Edge I'm not going to download another browser to try and pay my bill this is unacceptable you need to fix your billing system ASAP maybe it's hacked all these people who are having this issue can't be wrong!

We totally understand this is very important. At this time, we have enough examples of this error and our engineering folks are working hard to get this resolved. You can always Community-2153  until we've resolved this and the payment system is working like normal.

The thing that was disconcerting about this is when I first signed on Nov. 13th to pay my bill, none of my previous payment information was available, after several tries of trying to re-enter the same info and getting an odd "that email address has already been used" I became concerned and wondered what had happened to the personal info, had the site been hacked, did I just give away my credit card information? If I hadn't received an email from dc5fan I wouldn't have been able to reply as not only had the payment information been hosed, but community sign-on was broken and apparently all my preferences had been reset to default. (I shouldn't have received emails). I finally used messaging to get my credit card info back, but where was it? Anyway, from a professional standpoint, this is very amateurish behavior.

HAVE WE BEEN HACKED?

I see your concern @clarence23​ but there's been no hacking. The site has been a bit fussy for some folks with payments but it's being worked on by our internal teams. We know your info is important so we do our best to make sure we protect it when you use our services.

I am having the same problem. This only started within the last month or so. Can no longer make payments online without the endless "Please enter a valid card" loop.

There is nothing wrong with my card. Have tried on my home Desktop, My phone, and my friends PC. This is on T-Mobiles end and I seriously hope it is fixed soon.