The Bugs forum thread is not just for reporting bugs to the administration. It is intended to solve technical problems encountered in the game. Before creating a topic, you should check to see if there is a topic with the bug that you want to report. In order to report bugs or glitches, you can create a new thread instead of writing in the existing threads. Topics with the title Bug, Glitch will not be considered. Try to put a brief description of your problem in the title of the topic. If the problem described above occurred on another account, be sure to specify the account where it occurred.
so its not once for every lvl ie once lvl 1, once lvl 2 and once for lvl 3 just once on one of the three the assumption would be once a year one all three! its really not explained well at all
If you want collect all bonuses, you need buy in this sequence: 1) Thanksgiven level 1 2) Thanksgiven level 2 3) Thanksgiven level 3 If you buy level 2, you cannot get level 1 bonus.