Anyone with T-Mobile experience this

So over the past 2 months we’ve received a text from T-Mobile saying excessive roaming warning and that we will be terminated from their service. I talked to an agent last night and she suggested I just switch providers which shocked me coming from T-Mobile themselves lol. Pretty sure they’re not supposed to tell you to leave 🤣 but anyway, she kept asking me like 10 times if I’m sure we didn’t travel outside of the states. I’m like, ….I am POSITIVE. Never in our lives lol. But then she said something interesting and I have been thinking of what it could be, because she didn’t elaborate. She said; “I can also see something, from line ending in xxxx but… well it’s a technical issue and I am not allowed to discuss “ what the heck? So weird to me. Anyone dealt with this?