USAA Savings Credit Card Complaint

USAA Savings Credit card department,

Billing disputes North Carolina

A charge of $520.00 from " - '' was entered on my USAA Credit Card on -/-/2016. I attempted contact with the merchant and was unsuccessful. [ The 'merchant ' is listed on the url as " - '' with which I have no affiliation, nor have I ever purchased or donated to them. The phone number associated with the 'merchant ' is : -. Reverse Lookup shows it belongs to one -, IL -. I do not know this person ... In the meantime, on -/-/2016 I contacted USAA to dispute the charge. Though the charge was reversed, at that time, it reappeared on my - statement. I contacted USAA again to dispute and was told that their investigation was 'unable to determine why you believe the transaction is not valid ' [ This in a letter which I subsequently received dated -/-/2016! Attached ] I contacted USAA again to dispute the charge on -/-/2016. They, in turn, - a replacement credit card and again gave me 'temporary credit ' for the charge.They also agreed to have someone from their fraud department contact me, within 48 hours, to further discuss the issue. The phone call never happened, but I did notice in checking my statement balance on -/-/2016, online, that they had reapplied a credit of $520.00 to my account. That was the THIRD time ... To my dismay, anger actually, I checked my statement balance online again on -/-/2016 and found that the charge was again on my account. I have contacted USAA on numerous times in attempts to resolve this issue and frankly do n't know where to turn from this point as those contacts have proven fruitless!