I started an RMA for my 1TB OLED Limited Edition on Sunday for a stuck/dead pixel but didn’t include a picture.
Valve got back to me and asked for one, and now I’m waiting for them to get back to me again.
Save yourself some time, include a picture of the problem when submitting an RMA.
I am not happy with Valve support (I’m in the EU, don’t know if it the same worldwide or not). My SD LCD makes a clicking sound and also you can feel it. I started a support request, but it has been days now that I’m talking to Valve. First they made me do a video, then asking questions and questions and questions.