Macdonald's app and customer service is up to ****!!!

Useless does not come close to discribe the Macdonald's app, it is not user friendly, my food never came and I am now in week two of trying to get my refund. It is an endless circle of them saying they will refund me if I send my card number, then they need screen shots, then they say it will take 5-7 working days to reflect just to follow up and find out that the payment has not been made yet. Needless to say I am fed up, how a billion dollar company is this mismanaged and ****ty that they can't even do a refund in over two weeks blows my mind.