Product: Debt collection

On XX/XX/XXXX I cancelled my XXXX cell phone plan ( 3 lines ) and moved my phone number over to XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX charged my credit card {$470.00} and did not provide any statement. On XX/XX/XXXX I was billed {$340.00} and not provided any statement for this charge. On XX/XX/XXXX I was billed again for {$180.00} and not provided any statement for this charge. I called XXXX customer support on XX/XX/XXXX after seeing this charge and questioned all three charges. I was on the phone with a representative of XXXX for roughly XXXX hours. He found I had XXXX active lines on my phone account, all with XXXX data usage. I had only ever signed up or used at anytime three lines- one XXXX, XXXX tablet, XXXX phone. The representative looked into my account back 6 months and found I had been charged for two additional lines, each with XXXX data usage as far as he could go back at $ XXXX and $ XXXX month and that I was being charged for all five lines for XXXX, XXXX, and XX/XX/XXXX. I asked the representative to further explain the charges on my account for each month and I was also being billed roughly $ XXXX month for equipment charges. He told me that was for my XXXX  XXXX. When I traded in my XXXX XXXX upon signing up with XXXX I was credited {$1000.00} for my trade in phone. He told me I did not receive any credit for this and was paying the equipment charge as an installment for a new phone instead. I asked him to look into this further to which he found the phone had been received in XX/XX/XXXX but marked as damaged. This was absolutely not the case, as my phone was in a phone protector since day one and worked perfectly fine upon trade in. XXXX never let me know they would not be crediting me for my phone or offered to send me my phone back and return the XXXX XXXX if I was to be charged for it and instead snuck it into my billing. He told me he would have the accounting department look into providing me credit for the additional lines I did not open, going back at least XXXX months, the charges for cell service after I cancelled my account for months XXXX, XXXX and XXXX of XXXX, request credit for my trade in phone ( {$1000.00} ), and ensure my account was closed. On XX/XX/XXXX, I received a credit from XXXX of {$980.00}. 

On XX/XX/XXXX I received a letter in the mail from Amsher Collection Services. Account # XXXX stating I owed them {$1500.00} for a debt to XXXX I immediately called XXXX to request any invoice or statement and XXXX directed me to contact Amsher and told me they could not talk to me or provide any information at all. I then reached out to Amsher Collection and talked with a representative who told me I needed to mail any proof of discrepancy to them and fill out a form online to contest the debt. I was not provided any invoice or information about any bill or debt XXXX was attempting to collect. I mailed them a copy of the refund receipt from XXXX dated XX/XX/XXXX and filled out the online form. XXXX XXXX XXXX XXXXXX/XX/XXXX. After I contested Amsher sent me a letter back stating the debt was valid and provided proof of " previous balance '' and then late fees. Nothing provides any description of the charges. I then contested the debt to XXXX. 

I received an answer from XXXX on XX/XX/XXXX that they had researched my debt and found it to be " valid ''. 

Please help me to remove this from my credit! This is not a valid debt from XXXX and XXXX is charging me for services not rendered, and after closing my account. My account was current as of closing on XX/XX/XXXX. All of the additional charges stem from after I cancelled service with them.