It’s in the UK, English is the de facto official language across the country (there doesn’t seem to be a law or act making it official)
England can de fac itself, even if its suppression of Brittonic tongues was de jure.
So technically it’s not like if the company gave tickets written in English in Turkey
That's exactly what it's like. English is not the iaith of the pobl or the gwald. It is a foreign tongue. Was it not enough drowning Hafod Fadog, these people now need be drowned in gibberish as well?