Bharat Petroleum [BPCL] — they cheated me by providing bills with different dsm name and bar/nozzle number

Address:

Oberoi freight carriers mysore highway, 562 109

I had told them to fill for full tank, they had set it to 0 and filled it till 100 and they said they won't accept card, I said I will give them cash he continued from the same and it was 330 he asked 100 more as it was done before, I denied and asked for the bill he said first u need to pay the amount and paid it via card.. I have the proof of paying 430 rupees.. And the bill had different names of the employee who filled the fuel and different nozzle /Bay number.. How is tat possible.. It's cheating