Grocery order delayed by 2 Days?

Order was showing OUT FOR DELIVERY, but the didnt deliver. Then they updated that they couldnt contact me, however, there wasnt any call from their side. Then it was showing OUT FOR DELIVERY the next day (2nd Nov), but they will actually deliver it on 3rd Nov.

The worst part, this was a PREPAID order and i couldnt cancel it and get the items on the same day on AMAZON, nor could i contact with their customer care or a delivery executive(to know if they actually attempted delivery).

Very shady practice. Will use COD everytime from now onwards.