Charged for order not received -NO RESPONSE from UBEREATS

I ordered a meal from Nandos via Uber eats .By the time I got the notification that the food had arrived I was by the gate but there was no food ,no driver ...just a photo that the driver was there and left the food outside the gate .Immediately contacted Uber eats ,and tried several times after ....no response . Their service is pathetic , after few incidents of incomplete orders .....they lost me as a client .