PhonePe — Upi/rev statement

23 February Ms. Ani Das, a/c no[protected] transferred rs 850 in my account through phone pe app. It was successful and credited to my account, then after sometimes it was debited immediately showing upi/rev in statement and it was not credited to her account. And on connecting to customer care sbi they told to contact to upi service provider through which the transfer was made and on connecting phone pe customer care they told me that transfer was successful and afterwards what happened we do not know. Money has not been credited to any of the account.
Please provide the solution.