Reliance Trends — Vouchers received

Address:

Madanapalle

I made purchase of approximately Rs.2700 on 12th July 2020 n received a few vouchers. Of which 2 online ones to be redeemed between 16th july and 3rd August. They seem invalid. Code mentioned is APRIL1002, which doesn't reflect on any product. Why do u have to provide invalid vouchers n what am I supposed to do with them??? I'm now not sure if the others I have to redeem in September are valid at all!!!
I need a immediate response on this.