Log Out From application auto close your app than open again .
Open application and goto setting's you have oppstion change PIN & password .
Open application and goto Recharge history oppstion you have so many oppstion on screen last 10 recharge ,day report etc...
Open application and goto complaint oppstion you have oppstion create complaint and show your complaint history OR Open appliaction and goto recharge history and thna chose last recharge you have oppstion on screen .
open app and goto forget password OR Call distributore OR call customer care .