<prompt> Human: Hi all,tldr: Im being charged for a parking decal by my former apartment complex that Im sure I turned in and if I dont pay it will be sent to collections. Who should I contact?x200B;I moved out of an apartment complex on July 31st. At the time I moved out I handed in all the keys they had provided me except for one I believe it was a mailbox key. I was told I had 15 days to find the key or they will send me an invoice for 35. x200B;I received an invoice in the mail for 70 for said key, as well as a parking decal which I am 1000 sure I turned in. Im so sure because I distinctly remember when I turned the keys in they asked me for the decal, so I said Oh, sorry! Ill go grab it off my car. So I went out and got it from my windshield and turned it in along with everything else.x200B;I called the complex but was originally sent to a 1-800 number that I believe handles calls for them when its not business hours. I was told Id receive a call back but never did. I called about 5 days later and actually contacted someone in the office and they said they would look into it and call me back in the afternoon. No one ever did. I called again the next day and the same guy said he cant find the parking decal but hell talk to the general manager and I should email him as well. I emailed him the the GM basically said I can either pay the full 70 for the key AND the decal or it will be sent to collections.x200B;I have a flawless credit record. Never been late and never missed a payment. No collections ever. Who can I contact to get ahead of this? I was thinking the BBB andor the credit agencies but is there anyone else? I can afford the 70 but to me its more the principle of the thing where Im 1000 sure I turned the decal in and they are billing me for it anyway.x200B;x200B;  <response>: what paperwork did you get signed to verify that you returned the decal? 