Amazon India — defective mi a2 handset delivered and not taking back on time

Address:	Ernakulam, Kerala, 682019
Website:	www.amazon.in

I bought mi a2 handset via amazon which was later found having battery issues. Ordered for replacement on dec 1st. Pick up was shown in site as within 2 days. But its been 11 days now and still no one came for the pickup. Meanwhile i called amazon customer executives 6 times during these days were all of them promised me that the pick up will be done within next 24 hours, but nothing happened. Thus the replacing of new handset is also delayed for this long. Am going to cancel the replacement order and needs money back and compensation for these delayed days.