Scandalous! First and LAST time I order!

Scandalous! First and LAST time I order!
I ordered 3 the same products on Black Friday with a substantial discount (from 99 for 53), only 1 will be sent! Then I hear that they only had 1 in stock and therefore have to pay extra for the other 2 (normal product amount 99 euros without discount) if I still want to receive them.
Afterwards get a payment link that I still have to pay for 2 more. Called to ask if they can help me in any other way and the answer is 6 euros off, really outrageous.

First put your LIVE STOCK on the website and do not give people the option to order more.
Don't let people pay at all for something you don't have, because a surprise afterwards is something no one is waiting for!