I've been with TT since they took over from AOL and with them since the internet began, so around 25 years or so.
I've had many problems with TT since they were hacked a few years ago, and compromised my personal security. It's been horrible having to fend off calls from criminals intent on goodness knows what. I have tried to work with TT to find a soloution but they are useless at helping me.
I reluctantly left TT 6 months ago and went with BT. The scam calls have subsided to almost none. I did have a convesation with the scammers, and they now realize I'm no longer with TT they have stopped calling.
Changing provider has cost a little more, but the service is 100% better.
Hope my experience may help you.