Uber eats got it all wrong and bad service

I ordered Mcdonalds from Uber eats on Friday and when they delivered they forgot my 2 year ols son's happy meal. On the app I instantly informed them they forgot the meal and they said they would get back to me within 24 hours. I heard nothing - on monday i resent another complaint and they then got back to me to say they cant refund me for the meal because i needed to do it within 48 hours. Totally pathetic as I laid the initial complaint within 1 hour of getting food. The system does not work 100 % and I feel conned.