online cheating n fraudulent ladies in contact from NOIDA ct

certain ladies on contact offering of friends for theit favour promising good sum in retirn when a meeting is fixed. However, the ladies by company name AdultFriendfinder after taking joining fees give false promises and ask monies again n again under diff heads and when the customer ask them to cancell membership they again ask money as Cancellation Fees which shows clearly that they want to loot the customers. please hv your advise as how to teach these ladies by bringing them under law