UBER EATS TERRIBLE SERVICE. Dissatisfied customer

I recently ordered through the uber eats app from a merchant called Col Cacchio . They have been recently been running an ongoing special throughout the week . A “buy one get one free “ on their pizza . So I placed an order on their tikka twist . Not only was there a buy one get one free there was a price reduction so I place the order because I think to myself this is a good deal as anyone would . Moving on I place the order etc . When I go back on the app to see the order details I see one pizza and the tikka twist is no long having the buy one get one free and the price reduction is out . And I’m confused as to what happened now .So I make contact with Col Cacchio and they let me know that something like this has happened before and they pass on my information to uber support because they say it’s not a fault on their end . And they let me know that I’m more than welcome to pick up the other pizza . I was unable to pick up the other pizza because of the place being far from my place of residence and the bad service . So time has gone by and uber support has not reached out to me so I phone the merchant again and they phone uber support again . A customer representative was presented to me by the name of sheilla and this is basically an automotive message to let me know that I am know speaking with a representative . I express my concern and suddenly the customer representative is unavailable and no contact is being made there after . I’m extremely displeased with the service of uber eats . I am a member of uber one eats exclusive . I pay for uber eats and expect the standard to be on par with. I’m a loyal customer to uber eats and this is the service I get in return . Their technical issues should not be on my cost ! No refund !no contact! I’m extremely disappointed .