Mivi — No one has come to receive the under warranty not working product

I have applied for a warranty claim against mivi for the product named mivi collar classic gray (a Bluetooth neck band) on Sat, 7 May, at 21:35 . they told me from email that they have received my mail and arranging a pick up with help of smart express company they told me that the pick up will be done in 72 hours, 4days later i again mailed them for complaining that no one has came to pick up the product, again promise of 72 hrs. and no one came i called smart express and they only give some time extensions nothing else.
finally i applied third time the order generated third time for pick up, and guess what ! no one has came to pick up, im providing you the pickup order numbers
XSE[protected]first time 13th may 2022)
the second mail they told that the man will pick up in 48 hours
XSE[protected]third time 5th Jun 2022)