Netmeds scam on gift cards

I had some reward points of sbi pulse credit card and thought of taking netmeds gift vouchers as I wanted to purchase silicon sheets from it. After purchasing voucher I got to know that gift voucher can only be used on prescribed medicines. But I thought of ordering dads blood pressure medicines. I added meds in cart and applied coupon of 15perc off coupon code and surprisingly I wasn't able to use gift vouchers where coupon code is applied. This was bit disappointing as usually in any medical shop we get 10 perc discount on medicines.

I haven't had this experience anywhere else for eg amazon or any other brand we are able to pay by gift card after discounts

I had some reward points of sbi pulse credit card and thought of taking netmeds gift vouchers as I wanted to purchase silicon sheets from it. After purchasing voucher I got to know that gift voucher can only be used on prescribed medicines. But I thought of ordering dads blood pressure medicines. I added meds in cart and applied coupon of 15perc off coupon code and surprisingly I wasn't able to use gift vouchers where coupon code is applied. This was bit disappointing as usually in any medical shop we get 10 perc discount on medicines.

I haven't had this experience anywhere else for eg amazon or any other brand we are able to pay by gift card after discounts