After applying for a trial supply of a "diet pill" at a low cost, in which I had to give credit card details, the company has since taken extra money from my account with out permission, is there anything I can do to stop this from continuing and get my money back?

I took a trial which came through with no problems. However on checking my account today I find that they have taken 2 large amounts of monies that I have not authorised for them to take. On reading another complaint here, I find that its a scam. I want nothing further to do with this company and would like my monies back . Any one reading this please beware. Kathy Lines - Australia

I've now had sent for a £3.00 bottle of Acacia Tablets but have now had £76 taken out off my Bank account. I am furious as I am a pensioner and cannot afford this loss. Is there any way I can get this back? I. Grant.