called 3 times in 30 minutes and left no message.

they always call me at the end of the month leaving me a message tell me that my bill is passed away passed to do with them and that I need to call them to make payment arrangements and I have no idea who these people are are refused to answer my phone I'm getting sick and tired of calling me every month and tell me that my bill is way past due and that I need to pay it now I know this is a spam and I we fused to answer my phone I wish phone call was stopped but they never are

This number refers to [CPS Energy]'s billing and service phone number. The number is displayed at the top of their web page.

https://www.cpsenergy.com/en.html

I received a call from 210-353-222 that showed CPS Energy as calling number.  When I answered it, someone starting speaking Spanish and asked for us by our last name.  I could not understand and asked "What?"  In broken English, he asked if I spoke Spanish.  I answered No and his reply was "hee, hee, hee, hoo, hoo, hoo"  and hunged up.  I called
CPS energy and they advised that they have had several customers calling with the same issue.  Be careful with these calls and do not give them any information.  It shows up on your phone as the real CPS Energy and their number.