Xiaomi India — refund cheating

In xiaomi mi super sale with exchange offer is going on. As a consumer i have placed the order redmi note 7 pro (4 gb x 64 gb) on behalf of exchange.in a same time i have made the payment of rs 7799/- on 18-nov-2019). Next day on 19-nov-2019 smart pickup got failed due to some technical reasons.

Regarding the refund i have contacted xiaomi multiple times, each time when i contact xiaomi they are telling 5-7 or 8-10 working days. But fortunately refund policy is not available in xiaomi website "mi.com/in", if i ask the same thing with customer care dept they dont have idea.

Being in digital network why xiaomi is required so much time to refund. Few minutes back i have contacted the xiaomi chat center, they are telling now 5-7 days required to reach warehouse, 1-2 days required to initiate the payment, 8-10 days required to refund. But no one knows exactly how many days required.

Xiaomi is ready to supply the material to customer within 24 hrs, but why they required 5-7 days to return warehouse. Once the product is reached why they required again 1-2 days to iniate the refund, why xiaomi is required this many days. As a customer i didn't take many days to make the payment.

Is there any policy to consumers or customers on behalf of xiaomi like "let the customer use the our product for 8-10 working days. If customer didn't satisfy means we will collect it back"

All the customer care executive says we are not fake you will get refund, is this is not fake or cheat to hold customer money for long time.