Terrible Uber Eats service - No Service!

My last two experiences with Uber eats was terrible. The very last one, my order I was told by Fishaways Gardens Center to cancel my order because they do not sell part of my order, then why is it on the menu? Why is there no communication line between a 3rd party service you are using? To tell me as a manager there is nothing you can do and no contact for Uber Eats from your side, it baffles me. I literally had to send all the drivers messages not to collect as there is no order which was extremely irritating. I did not want to cancel because the last time I ordered on my husbands app, I was told by a restaurant to cancel my order at no fault of mine Burger King Lorraine refused to take any ownership and said I will need to speak to Uber eats, I explained what happened when I spoke to a chatbot at first then received a reply to say that they already started preparing the order which was an outright lie because they called me to say the boiler is not working so I will need to cancel and will receive a refund, to this day my husband has not received his reimbur*****t for the food order, I have tried sending numerous emails but nothing. I don't understand why the options are so limited, why is there no option for "items not on menu, cancel order and receive refund". This is pure theft from Uber Eats side. This is the last time I will place an order with Uber Eats.