Unable to pay using supercoins for flipkart grocery order

I am a flipkart plus premium member and get 4% supercoins on every Rs100 spent on flipkart.

The last time I placed a flipkart grocery order I was able to redeem upto 5% supercoins but I am unable to pay with supercoins now. I am able to pay using supercoins upto 5% of order value for some flipkart orders but not flipkart grocery.

Are plus premium members still able to pay using supercoins for flipkart grocery order? 

Kindly check and let me know if you can. Thanks.