Swiggy — cancellation of order without prior intimation

Address:

Swiggy Saltlake, Kolkata, West Bengal, 700012

My order was cancelled as my ph no.was unavailable but i provided two other phone numbers in the instruction box to the executive to call in case if they can't reach me. He atleast could have delivered it to my house what's the point of having a GPS system and map location if they can't deliver at our house. The payment was made by card. What's the point of paying the full amount and not receiving the order. Later only half of the amount is promised to be returned? My food didn't arrive neither my money? Why?