Xiaomi India — Mobile handset repairing

Address:

Ahmedabad, Gujarat, 382445

I have sent my xiaomi mi4i handset for repairing to xiaomi service center at Ahmadabad on 17/12/15 through its Pickmi service. They asked me to pay an amount of 4618 rupees as a repairing charge to replace my broken LCD with a new one as per their policy.I have made the payment within time.( Transaction Ref No IR80739098 for Rs.4618 on 24-DEC-15 13:23). But on 29/12/15 when i have received the phone i found that neither the old broken display was changed nor its been repaired. They have not even sent me the recipt of my payment as they promised and they yet not have sent me any explanation for such action.