UBER EATS FALSE ADVERTISING

FALSE ADVERTISING!!! About 2 days ago I had a party at my house and wanted to order alcohol online I was going to go for bottles ASAP but then on Facebook the advert for R75 off first purchase on Uber eats popped up. I then downloaded and then wanted to proceed to place the order. Now I know R75 off is nothing compared to the bill of over R1500 there would've been a saving and I did not get it. I had to then incur debt to eventually get a contact agent to speak to as Twitter means nothing. I am disgusted in the fact that Uber eats is getting away with false advertising!!!