If (like me) you bought a steam deck right before the announcement of the OLED version and the price drop for the original, you can contact steam support, tell them that if you knew about the coming price drop you would have waited, and request a refund for the price difference.
I paid £369 for a refurbed 256gb steam deck, then they lowered the price to £279, and I just got £90 refunded to my steam wallet this morning after contacting them yesterday.
Trying to get a refund too, order a month ago, but the screen died after 3hrs of use, so i asked for a refund and they said they’d send me a new one. Waited 2 weeks for the new one then the new models were announced. So I opened a ticket to ask to return it and they said they are investigating.
It’s been a week, and i replied twice asking for an update and no response. Opened a refund request and they closed it immediately saying it was a duplicate as the first one is “being investigated”. Hope they aren’t going to try and ride it out till it auto closes.