Reliance Trends — not giving coupon benefits of rs 2500

Trends shop in satara city in (Mh) is closed for 15 days in lockdown from 17/7 — 31/7. We purchase before 15/7 and have 5 coupons of 500 each is valid upto 03/8 and officer confirmed he will extend validity of coupons after reopen.. Your shop open on 01/8. Your rude officer denied to give extended 15 days upto 18/8. I must have extended period to purchase and avail coupon benefits. Coupon nos — 112499/112594/112500/112277/112276.
I send email to your customer id. But no response since 48 hrs.
Your quick response needed to
Do purchase fast.