Company does not answer telephones

A marketing person phoned me and offered me this wonderful deal of becoming an ambassador for Isabella Garcia for an total amount of R382 for the full kit. I was told that I can pay it off in 8 months at R29 per month, I told the woman to deduct the amount all at one time for R382. Now they are deducting R382 per month on my bank account via debit order. I have cancelled the debit order on my account and expect full reversal of the R 764 that has been deducted off my account. I have tried phoning the customer care line as well as tried to contact them via e-mail but there is no response. I am not impressed with the service or the breach of contract because what they are doing is not what I agreed to. I will also make sure that everyone I know, hears about this company and do not fall for their ****.