Useless customer service call center agents and Visa department

I have been calling to get feed back on a complaint I placed that Rain Limited is been debiting my account with out my authorization the first time I received my refund back after 3 months of fighting with African bank. now this has happened again and I been told I authorized it when I ask for proof there advise there will come back to me the very next day, this was on the 18th of December I am still awaiting feedback I have been calling and all i get is that the supervisor at the customer complaint department will call me back and still nothing has happened

This is poor service at its base I want my refund back and will stop at nothing to get it back