Yes, confirming,
For the U.K., you can’t get Borax here from anywhere. We have the “Borax substitute” from Dri-Pak.
Like MrAlex, I have seen “Borax” on eBay, but in truth this could be anything from the substitute, to bicarbonate of soda through to washing soda (I certainly wouldn’t know the consistency of Borax powder).
Don’t know where we stand on anything legally in regards to a ban though, I had heard there was a ban, but unsure if for just U.K or whole EU and if just for certain applications?