I pay for it from Malaysia with a student discount. It works out at around £2 a month. Well worth the price since they started the BS messages about ad-blocker. Also means I can actually watch on the TV or phone without wanting to kill myself.
Having said that, they're basically advertising something they can't actually provide. 'Ad-free' actually only means that the Youtube ads (which admittedly are the most annoying) are missing, but they have no control over adverts that content creators choose to include. Thankfully, most put time stamps on them nowadays so they're easy to skip.
The worst one is Spotify. I paid for premium for no adverts, and they sneakily word it to mean 'no adverts' only during music. Got halfway through a podcast and had to sit through an advert for something. I was so pissed off.
This is increasingly becoming a thing. Rumours are that Netflix and Amazon are both going to change their cheapest package to include adverts and make you subscribe to a more expensive package to get rid of them. But by that time, the damage will already be done. The advantage of subscription-based TV is that shows are made for the viewers. When it's funded by advertising, shows are made for the advertisers. That means lots of mindless wank with a broad appeal that everyone will forget about in 5 years. There's a reason why most of the best American TV of the past 20 years has come out of HBO.