Ola Money — transaction failed but money got deducted and no refund

Address:

Hyderabad, Telangana, 500032

I had old post paid due amount of 3985, i paid with my syndicate back transaction failed and again i tried the 2nd time, while trying the 2nd time i got a message that amount got deducted and the 2nd transaction failed because there was insufficient funds, because the 1st transaction money got cut and 2nd didn't have enough funds, i got mails that 2 transactions got failed and incase money deducted it would be refunded with transaction number, so after 3 days on some cash back i got 300 to my ola post paid and 3985 came down to 3685 and a late fee of 15rs added and 3700 i have paid with my hdfc back on 20 or 21st then transaction was successful and ola post paid balance is cleared i waited for 10 long days to get my money back in my account, i tried reaching the service centre but all they reply is issue is resolved, how is the issue resolved when amount is not credited back, i have been trying to reach then for last 25 days now mailing them everyday, their customer service number doesn't work, they have to refund amount of 3985, attaching the screenshots of their response mails and 2 transaction details of syndicate back where in one money got deducted