Spam calls on Tmobile

Not sure if others have noticed it as well - my mobile number was on another carrier's network for 8+ years, and I rarely got any spam calls. Then I move over to Tmobile and it is as if floodgates open up on spam calls - and that is not the worst. I start using the Scam Shield app and the number of spam calls per day goes up manifold - and the worst thing is several of the numbers are those that the ScamShield app would have me believe that I have already 'blocked' and 'reported as spam or fraud calls'.

Has anyone engaged Tmobile on this? Curious what (if anything) is their response? It would seem to me the data leak might be from their side, which has increased the spate of spam calls.

¡Gracias!