Uber Eats complaint: Won’t refund for missing food

I ordered several times with Uber Eats on 11/18/23. Each time I order, the restaurant forgets something or the order is wrong. This happened to 2 of my orders on 11/18/23. The first time, earlier in the day, I submitted a complaint and was refunded (I was not given items I ordered). Later that night I placed another order at a completely different restaurant but they forgot my To go martini. I submitted a complaint and just reordered the drink item(and had to order a food item because they couldn’t just send alcohol). But Uber support, a day later, tells me I am not eligible for a refund on the missing item because they already refunded me for another issue. I explain I was essentially charged twice for one thing but their response was to rate the restaurant. So because 2 places mess up orders, they can keep my money for something I didn’t receive. Uber should not be allowed to keep money for something I paid for but didn’t get, regardless of what happened at another establishment. Unfortunately with delivery here, the restaurants are constantly forgetting items, sending wrong items, or I’m not getting the food I paid for. I do submit a company each time because I’m not going to be fine with paying for something I’m not getting and the company just keeping my money. This is fraudulent activity.