Never got my deposit back

[#1]

I cancelled my service over a year and a half ago with a remaining bill of $149. I was told this would be deducted from my $250 deposit return at which case I'd receive $101 back. Sent my boxes in etc did everything I was supposed to do, then got a collections letter from Verizon for the final bill. Called and no one could sort it out. Now it's on my credit report as owing Verizon when they owe me! In the terms of service it even states that within 60 days the deposit shal be returned minus any amounts owed. When I call everyone just acts like I'm stupid and gives me false information until I point out their own writing. Then I get "a supervisor will call you back". Who else can I call for this?

[#2]

Please go to your profile page for the forum by clicking on your name, and look down the middle towards the bottom where you will find an area titled "My Private Support Cases".
There you will find a link to the private board where you and the agent may exchange information. This should be checked on a frequent basis as the agent may be waiting for information from you before they can proceed with any actions. Please keep all correspondence regarding your issue in the private support portal.