IDFC Bank — mobile number registration with instacred

Address: Chennai, Tamil Nadu, 60005

Website: www.idfcfirstbank.com

Hi am srinivasan from chennai my acc num 23024226 my mobile num is [protected]
I have buyed a mobile on idfc first bank durable loan and get a easy buy card from idfc the card is active but i can't purchase through online in amazon and filpkart there is no option showing idfc bank name in payment page. And while trying to buy a voucher through instacred my mobile num is registered with instacred but this is my registered mobile in idfc i spoke to customer for a month but there is no use they said we can't know slove this issue send a mail with screenshots of what's the issue facing. Kindly anybody solve is and revert back thank you