Thieves this company has charged my mothers card o...

Thieves this company has charged my mothers card over 100 falsely we bought something from them late last year now all of a sudden we are receiving a charge when we paid full price last time we were in business with them. Ive reached out more then once to attempt to talk to customer service or a manager but i keep being told ill get a call back but never do. My mom is disabled and legally blind. I did not they take advantage of the elderly! Thieves