Easy Holiday (VRS ) SCAM

I will like some help to cancell the contract with Easy Holiday (VRS).They scammed us while we were in holidays in Durban.We were sitting in a resturant, when an indian lady approach our table.She said she run a free competion.She ask us if we were interested,we say yes ,then she gave us two scratch card to scratch.We scratch,but i was not so lucky to win ,and my wife got all three symbols marching and she won.Then the lady invited us to their offices for the reward.I told that lady that we are still drinking here we will join her later ,she direct us to those offices.After 5 hours we went there to collect the reward.On arrival they talk to us for about 4 hours,we were tired and want to go and sleep ,they assure us that we are going to get our price,then we decide to leave them and go,then is where they said we must sign the papers so that we can recieve the price,and told us our price is a holiday for two in Drankensberg mountain.So they bring the papers written with small notes,to sing and we sign,after that they says we must give them our credit card to book our place ,before is full and we will be refunded after booking,i also gave them my credit card,they take my card and return shortly,then they gave us two admission cards for holiday of two.We then left ,as we were tired and children were now crying.Then we go and rest for tommorow as it was our last day.They keep those papers and says they will keep in touch.On February i recieve a post from EASY HOLIDAY,when i open it ,i notice that this is contract with a deposit of R5200.I tried to call Durban but invain .Then i look at this contract and find the telphone numbers on that and phone them to cancell, they only told me that i am late ,i supposed to cancell in five days.I told them i dont know anything about the contract,but they ignore me and keep deducting money from my credit card ,which i dispute that money from the bank,and close the account but the bank does not want to close the account,and i told the bank and the scammed holiday company that i no longer working , they must cancell that contract,but invain. So i need help from you to help me to cancell this contract,because i am not working and they keep debiting money from the closed credit card account.