I have also just paid £89 for a years worldwide subscription to Ancestry. My subscription had expired just before new year and I was sent an email offering a years UK access for £59 - a 50% reduction a few days later.
I phoned Ancestry and asked if I could have the same percentage reduction on a World subscription and they agreed. They did look at my account though and noted that I have been a member for several years - which is why, I presume, I got the original email.
I am looking forward to getting started again - I've missed it!