Consumer Redressal

Purchase a product "oneplus 9 back cover of Rs.1450/- i ordered for oneplus 9r but i received for oneplus 9,before the closing of return window of product i opt for return the product as it was not fitting proper for my oneplus 9r lock button was not properly operating beacuse of that cover.Saturday i.e.,07.08.2021 i raised a return request for scheduling to pick on monday i.e.,09.08.2021,kept the product ready,the pickup boy cancelled the pickup without coming to my pickup location and reason shared was "product was not ready"i received this via text message. Against this i complainted to amazon customer care about the issue and the same was taken in complaint and no complaint id been issued as they promised me to reschedule the pickup and asked me to wait for 72 hours.i also reminded them about the return window is uptill 10.08.2021 they assured me dont worry.On 10.08.2021 i again reminded them by calling they said 72 hours not completed, on 12.08.2021 i called for knowing the status of my pickup and my complaint status.Amazon now not even taking back the product nor reverting me the status of complaint,they just hung the call