Who called from 2034095991

Called- I didn't answer, they hung up after one ring

This is the 3rd time these people called me. Apparently this number is from Bridgeport Connecticut. This phone call is becoming an aggravation.

Call the number back and it will say a 100 dollar rebate claim if you press 1 and 2 to be placed on the do not call list. So I pressed 2 and hopefully it works.

It won't work, I tried that and got Another call from them...

Of course it won't work!
Your calling back merely verified your phone number was "live".

Probably time to buy a call blocker device, app, or phone.
Google "call blocker" to see the various types, and find one that best meets your needs.