Complaint Review: verizon c/o Chase Receivables

We contracted with Bell/Atlantic for a mobile phone and service.
Service became a slight problem with dropped calls, down time and general poor service.

But matters got worse Verizon bought out BA and service,down time and etc got worse--they said all due to the buy-out.
I on several occasions notified them that I was canceling my contract due to bad service, etc.

After several noticies to no effect I called and reached a live person at customer service--after a debate with her we agreed to an amt. and to close the account.

Now I am being harrassed by phone(even on Sunday) and by mail that they are going to proceed to collect what is not theirs to start with.

I WOULD NOT RECOMMEND EITHER OF THE TWO COMPANIES--THEY ARE DISORGANIZED AND CAN NOT KEEP THEIR RECORD STRAIGHT.