Process failed transaction and mend money

Paytm transactions system is worst. It don’t reflect correct status of the transaction. They process failed transaction and somehow mend money. I had recharged (special offer where no money will be credited) using paytm and status shown is transaction failed. So I had manually recharged. After sometime transaction shown success in paytm and money got debuted. Finally its waste of money. How can they process failed transaction it’s not fair. My money was taken by those idiots paytm guys. They don’t have proper customer care number. They don’t care to reply for mails. I wrote email asking to provide them contact number many times but no reply. Don’t use their services.:oops: