Uber eats worst customer service ever

I purchased on a Sunday, and there was a promotion buy X amount and get x % off. I followed the T&C of the promo and added the correct amount of items. I proceed to checkout and it shows the amount I must pay. I am fine with that, then confirm my replacements, etc. I got the order and then got my invoice I saw the amount was not the amount that was shown at the checkout it was more. I contacted them immediately to inform them and correct the situation. I sent the details, I sent the image of the promo. I get a reply asking to elaborate more. I do so with all the information and screenshots of the promo again

They ask me to give the order number. I give the order number...

After a day they ask me to please provide some additional information about the difficulty I am facing. I tell them I already explained myself above. I screenshot my earlier responses and sent it to them

I got a relpy to send the screenshot of the promo. I told them I already sent that too. I resend the promo and messages...

I get a rely asking more details on the promo code after I already sent them the promo with the T&C included in the promo and it shows where I got it from.

I explain myself AGAIN. I send all of the information again.

A day goes by, no response... I then message asking them why is nobody helping me I get a response.. "To better assist you, can you please provide some additional information about the difficulty you are facing'

I become iriate tell them how ridiculous this is( I never swear just a lot of exclamation marks). I become fed up I try looking for a contact number there is nothing. I then take to social media to contact them there.

I get a response and they said they will look into it. SOmeone reached out advising of an error with the screenshot I sent on socials. So I EXPLAIN MYSELF AGAIN!! with order number, with the promo screenshot.

They reply the next day... In order to better assist you, please specify the exact names of the promotional items in your order....

I give up, I tell them you should have access to my account why must I do all the work and follow up the whole time. I told them to go through the conversation and read I refused to repeat myself.

21 hours pass no reply so I message them again asking why nobody replying (yes I should've given up but it's the principle). I messages on social again telling them I think I am going to make a post about the lack of customer service.

4 days later several times of explaining myself, multiple screenshots and someone finally reponds giving me a credit...

What a waste of my time honestly. This was not the first time I had an issue with payment on their app but it I would leave another review for.

I suggest to not expect much customer service from them. Dont expect help