I know this is expected but don't you love the way Steam Support put it here.
In the UK/EU I believe it can be ignored as I don't think this can hold up with our consumer rights.
Just like the fact you can get a refund on any digital download in the UK 7 days after with no explanation or even after that if it's not as intended. (I've used that a few times.
FYI: TLDR Version of Steams New Agreement