Amazon India — Hp laptop charger adapter

I have purchased A product from amazon India In the month of may just during the lockdown .
After checking the product i refused to purchase and return back to amazon.
as per amazon policy return should be initiated to me In 5-7 business days but till now amazon did not collect the returnable item and hence did not refund me.
Plz Help me as Its almost 2 months completed but amazon has not given me my refund.