Reliance Petroleum — non refund of amount paid through pos txn & even paid by cash

Address:

Reliance Petol Pump (eLoc - NG7672), Plot No. 191, 4A, Shaikh Colony, Mother Teressa Marg, Takli Feeder Road, , Katol road, Nagpur(Maharashtra)-440001., Nagpur, Maharashtra

Sir, i nandkishor k sarode resident of nagpur (Maharashtra) was filled patrol worth of rs 1000/- on 07/08/2019 at reliance petol pump (Eloc - ng7672), plot no. 191, 4a, shaikh colony, mother teressa marg, takli feeder road,, katol road, nagpur (Maharashtra)-440001.
I made payment of rs 1000/- by atm and amount was also credited to pos txn shaikh abdul (The employee who filled patrol at petrol pump) & amount debited from my a/c at the same time. But the employee said that atm is not responding, hence you have to pay rs 1000/- in cash so, i gave him rs 1000/- in cash again. He also told that amount will be credited (Reverse) in your a/c soon.
But the period of three and half month has been elapsed but the amount not yet credited. I personally contacted with the staff of petrol pump twice, they are saying that the amount will be credited by the bank. There is no look out of the bank because the amount is debited. I think that the cash has been kept by the employee and shown the atm slip to the agency at the time of closing of transaction.