Punjab National Bank [PNB] — I lost 2308 during transaction

Address:

641014

In february 08, 2018 i went to valarmathi hotel in coimbatore. There we tried to pay 2308 rupees through my punjab national bank debit card. I completed the process and entered pin. Then it came as transaction cancelled. Then i paid the bill amount through my friends card which was state bank of india. When we reached home i noticed that one bill was paid twice. I immediately contacted the hotel manager. He told that it will be returned to ur account within 1week i waited 1 month. Then i went there and asked them to explain. They not treated us well and doesn't mind us. I want them to explain about what happened and also the bank to return my amount. Proof: pics