Ecom Express — Return not attempted

I have purchased from Campus website and immediately raised a return request after delivery on 4th October 2022. The Campus customer care created the return request on 5th October and Ecom express should collect the parcel within 4 to 5 days. Till date they didn't attempt for any pickup or update the status of the shipment AWB Number : [protected]. I have raised multiple complaints at Campus customer care but they could not do anything other than escalating the issue at Ecom express. Campus website promised 15 day easy returns and they could arrange return pickup after 20 days due to Ecom express.