Conned into a fake purchase

I saw the advert on Facebook went into it and it advertised a free sample and that you only pay for the courier which I did. I never saw any other pricing and only intended to get the free sample. Two tubs an eye cream and a day cream was delivered in a couple of days which I thought was the sample there was no invoice or contact details with the parcel. When I checked my credit card this morning two big amounts was taken by Jouvence. R1354 and R1297 if which I never agreed to. I only agreed to the courier amount as it was advertised for the sample. Is this the way of coning people into a sale which they never agreed to. There are no contact details to get in touch with them either. I cannot afford such expensive creams and would never agree to this so I request that my money is returned to me.