Forum Discussion
Unknown backend error message!
I am having the Unknown backend error message when trying to make a payment from may 1, 2024. I have use auto-payment for years. The system did not take the payment. I cannot make the payment ...
Update: I called T-Mobile customer service again and this agent said she has to use a different "tool" to process the payment over the phone and that there would be an additional $5 customer support charge.
I agreed and she used the "tool" (that's what she kept referring to it as) and the payment was processed and my account is Paid up and running. And the backend error has vanished.
She said when she tried to pay it the standard way she got the same backend error so she needed to use the "tool" to push it through.
I hope this was somewhat helpful so you can help steer your T-Mobile agent in the right direction.
