Hartford Funding LTD review: They took fake charge from me

I paid mortgage and the company Hartford Funding LTD started to steal money from me. I paid $670 for the mortgage, but after 3 days I checked the account and it turned out that they charged me for something else. I tried to reach them and get info, but this jerk didn’t reply. I wonder if there are people, who have the same problems and what have you done in such situation, please post comments.