Reliance Jewels — proper igst invoice

Address:

753004

I have purchased one diamond necklace ଓ 2nd october 2019 and till now i have not recieved my igst invoice copy which was committed by the show room at cantonment road, cuttack, odisha. I have given mails to the head office but no response till date.
My name is alok kumar pradhan
My no is [protected]
I have purchased it on behalf of my company :samarth life sciences pvt. Ltd.
My mail id:[protected]@gmail.com