I was enjoying the game. So much so that I paid out for the 21 days ad-free. I was still happily playing when that 21 days ended, so I went and paid for it again. Now this is my fault for not checking properly, but it wasn't until after I paid that I realised it was now a slightly lower price for only 7 days. So where before I paid 4.49 for 21, it'd now cost me 10.47 for the same - over twice as much. No thanks.