McDonald’s complaint: Home delivery

We have been ordering McDonald’s since we have been able to once it was open ,my complete is every time we order and it’s delivered we have things missing 1st it was sauces or chips or drinks now it’s got worse meals missing .
I feel this is not exactable ,just because you are a big company,I don’t think you should over look these things ,we do get a refund which I thank you ,but I feel inconvenients to go through all the trouble of getting a refund ,two days ago we put a really big order and yet again we were missing a big meal ,we tried to get them to send it out only to be able to get a refund ,with this I reordered it and found had to spend more to be able to place the order this is wrong .
Today we placed another big order and yet again one meal missing ,I hope you look into this and have the decency to return a reply to me ,if I was a small business,I would not get away trading the way you do ,perhaps it’s better to be a small business and get it right than be big business and don’t care