There was an offer ,' Paytm cash" simply reply a question, after that asked to refer 10 contacts. Completed the task step by step,but as said the amount of offer not credited to my account. I registered a complaint also in mail box of the app. but heard nothing so far. Even my complaint also not showing in the mail box. It seems this company is totally fraud, only making fools to the users and waste their time by giving such type of false offers, so that maximum users can do this.