Myntra.com — Product picked up but after 3 hours of on the app it says return failed

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MYNTRA

The wishmaster picked up the return from my end succesfully but after3 hours of pick a call came from wishmaster and he says my return got failed due to quality checks and hung up the phone
Now i dont have the product nor refund what should i do even i've called him more than 50 times to get my product back but no reply even if my product didnt match the quality check then why did he take it with him he should have given me the product at the pickup