Myntra new user offer unlimited trick?

Hi i have used both my Sim cards to place orders using the new user coupons on myntra for max discount

I got another sim to place a 3rd order but even tho the sim/account is new, it gives error that the coupon is only for new users.

How to bypass this and keep using new numbers in the same phone??
Any clone apk that has the the new identity feature unlocked?