Credence XXXX, GA, XXXX called me requesting personal information, like social security, home address, cell phone, when i ak, why ; they told me was for a unpaid bill for att uverse account, i told them, i never owned any account with XXXX, and to please tell me what information, they had on file. they refused to give me any information, they only wanted my social security and other personal information, prior to verifying the info. i off course hang up. 
then i received a letter stating if i did not respond within 30 days, the discput the validity. once i call, again, they need my name, sacial security numbers, i told them i provide the credence reference id :, but once again, they infomred me that i need to provide all information. 
i had my lawyer deal with the problem, but i fell this is illigal tatics in hope to obtaine personal information for them to potentially sell. 
i called att and they told me that the account look like a fictious XXXX account.