Who does one contact with a billing problem that has become a nightmare?! I changed from Comcast (BIG mistake) in April an we signed up for the Fios bundle. I was notified by my sales rep that my account number had changed and I was given the new number. I received a statement shortly thereafter and paid it in full, to the NEW account number. Verizon did NOT apply the payment to the old account and rather kept the overage. They did not issue me a credit on my new account, no idea what they did with the overpayment other than they did not apply it properly. Within one week I contacted a Mid-Atlantic specialist who assured me, after 3 calls, that all had been taken care of and that the payment had been transferred to the old account and I now had a "0" balance plus $58 credit coming. Well guess what? Nothing has changed. I have called every 2 weeks and spoken with countless reps. Everyone assures me that this time the issue was corrected! Now I am receiving letters from a collection agency!! I am 100% disgusted with Verizon's billing and I wish we had never changed from Comcast! Who at Verizon has the ability to assist me?