Please don't trust on the Google pay blindly. It is app for its business strategy only. It can do anything to it's app users because Google pay has all rights to change any term and condition.Recently i have participated in one offer (task wall) n i have completed all required transactions. But i haven't got any reward.When i contacted the customer care they said that Google pay has all rights to close any ongoing offer before end time period.So you can't get reward .It's a new type of fraud.