Uber eats is a very bad app and unprofessional😡😡😡😡😡

I just ordered food on the app from Mama Yummy African food and my order was cancelled and the reason they said the restaurant informed them that i called and cancelled which i never did and they haven't reversed my money. This is so unprofessional and the app is not user friendly at all and there is no number you can reach them on you can’t even get help on the app its so frustrating I think theres a ******** activity happening at uber or the restaurants. I just want my money back i will never order from that Mama Yummy restaurant ever again.