Anyone else having issues using a Credit Union Debit Card?

When I signed up, I added my Credit Union's debit card. It failed to go through, so I added a bank debit card, then setup autopay with my Credit Union's debit card.

When that failed, I added autopay with my bank’s debit card (I usually disable this because there was initially fraud the first time I used it at an ATM).

Anyway, I called my credit union and they said there were no charge attempts on the card.

So …. does anyone else have problems w/ t-mobile and credit union debit cards?

I'm re-adding it as the default payment option but due to the excessive call-in wait queues, idk how to have them check to make sure their system isn't garbage (they can't text my voip #, so there's one strike against them); the only reason I haven't closed my bank account is this stupid $5 monthly discount…. and in 60 days my bank is going to start charging about $12/mo for the privilege of having an account with them unless my balance is $30k. Thanks but no thanks; needless to say, I'm planning on closing that account once I can get thisT-mobile payment option sorted out.