Bharat Sanchar Nigam [BSNL] — my recharge transaction failed

Address:

Dadar,Mumbai

Sir
My is a prepaid bsnl no [protected] (Previously mtnl) number, on 17th september at 22:22hrs my brother had send me recharge of rs500/- through paytm. But my recharge transaction failed. Paytm said my money transferred, bank also send me deductions message.
Sir he had selected mtnl operator, i think only mistake.
Sir i had called bsnl customer care they told me, my recharge rs500/- will be back and deposited in 7days. But till now no bank deposit is done.
Sir pls kindly guide me.