Reliance Digital — Customer name change in bill

Address:

Pattukkottai

Hi, me and my father went to reliance digital shop, pattukkottai and bought a wifi modem on july 30, 2020. Store has given a bill in the name of rajarajan j (My father's name) where my requirement is to change it to "shabi. R" (My name) so that, i can claim the amount for the wifi modem from my organization. Kindly note that the provided bill is also fainted. I have already contacted the store on this but i didn't received any help from them. Could you please help me on this.? This will be really helpful.