Reliance Petroleum — pending fuel amount not return received from petrol pump staff mr. vinod gadakh after taking the continuous followup

On 26th august i filled the petrol to my two wheeler at -
Reliance bp mobility ltd.
S. No. 49, nh 50 pune nashik highway, chandanapuri
Tal : sangamner, dist ahmedagar,
Maharashtra - 422613.
As i reuest to staff mr. Vinod gadakh to fill the fuel rs. 270 but he set rs.200 and filled the same. When i asked him why he set less amout and he tossed by question by random answer - he didn't hear properly. Then i gave him rs.500 note but during this agruments about the set amout i forget to take pending amout rs.300 and he didn't return by himself. When i remember that i contact them that time the shift supervisor mr. Sainath kadu was there, supervisor replied he need to discuss with mr. Vinod, while i requesting him to check cctv for resolved this issue he said - "cctv not working". (It's really shocking news).
We contact them next day mr. Vinod agrred that he not gave return pending rs.300 and he ready to pay return amount through google pay or phonepe but still not any amount received and we tring to contact them continuous from last 6 days, they didn't responding to call or no any positive reply comes yet.
I trust on reliance petrolium, and i hope it will be not break...

Can i hope this issue will resolves earlier?