Union Bank Of India — my refund not received by amazon

Address:

Hydel gate nainital road kathgodam haldwani, Nainital, Uttarakhand

My refund from amazon has not been received from a very long period of time that is since month of may for the amount of rupees 2699+2699 that is also debited instead of crediting also the bank is giving unsatisfactory answers and no cooperating at all.. They did not credited the amount in my account and also debited my account with the same amount... When i contacted amazon customer service they gave me the reference no. That is[protected] and immediate contact the bank