Interestingly, my mechanic sends invoice links over text. Mine didn't come through so they asked if I had TMobile. Turns out, T-Mobile charges businesses a fee

Interestingly, my mechanic sends invoice links over text. Mine didn't come through so they asked if I had TMobile. Turns out, T-Mobile charges businesses a fee (I want to say they said something like $250/mo?) to allow messages through even though I opted in and wanted this communication. Seems a little bit like they introduced a "solution" but then can simply charge to profit off letting people through the solution?