Nykaa.com — Showed the discount in cart but deducted full money on payment

Address:	Pune, Maharashtra, 411014
Website:	www.nykaa.com

I have ordered:
Maybelline lip gradation - rs 500 (discounted price rs 400)
2 maybelline color show matte - rs 325 each (discounted price rs 276)
1 elle 18 eye liner - rs 85 (rs 77)
1 coloressence eye liner - rs 125
So total amonut after discount should be :rs1154
2000 redeem points i.e. - rs 20
So amount to be paid is rs 1134
This was showed in the cart but when i made the payment rs 1332 were deducted from my account i.e no discount was provided on maybelline products.