Flipkart — Fraud of lucrative Exchange offer on Mobile

Address:

Flipkart Internet Private Limited, Devarabeesanahalli, Bellandur Buildings Alyssa, Begonia & Clove Embassy Tech Village, Outer Ring Rd, Bengaluru, Kar

I bought an Oppo Reno 10 mobile on Durga Puja sale which had Exchange offer for my old phone Redmi Note 9 of 8850 Rs inclusive of 4000 extra ( sale) which was to be picked up after 7 days and money was to be dispensed after pickup, but their pickup guy never showed up nor called me. The pickup got cancelled on last day of pickup.But when contacted the costomer care deny rescheduling the pickup and are not taking any responsibility for it.This is sure case of fraud.I want the exchange to be done