UPI — upi - friend deposited money, credited but reverted back immediately, not credited back in his account

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Paytm and SBI both

On 20th december i transferred 3000 money in my freinds account through paytm upi transaction it was successful and credited to his account then it was debited immediately showing rev in mini statement and it was not credited to my account and on contacting to customer care of sbi they told to contact to the upi service provider through which the transfer was made and on contacting paytm customer care they told us that transfer was successful and afterwards what happened they dont know and said to contact our bank. 10 days has been passed and money has not been credited to any of the account plz provide solution to this problem asap.