@TimBoss: There wasn't a bonus as such, just that the events were a seasonal bonus (as in extra high paying events). If you have got gold on all 6 of the "bonus" events (the 3 that started 20th December and the 3 that started 1st January), with a 200% login bonus, you should have got 12 million credits and I can confirm that is the case as I received said amount.
The 2.1M for the AE Race 3 is the correct amount (2.4M is the amount for gold, silver and bronze in that event)....combine it with what you win for gold in the other 2 new events and it adds up to the 6M:
Anniversary Super Lap 3: Gold: 660,000; Silver: 400,000; Bronze: 140,000 (Total 1.2M x 200% = 2.4M)
Delta Integrale@Tsukuba: Gold: 430,000; Silver: 240,000; Bronze: 80,000 (Total 750k x 200% = 1.5M)
S2000@Matterhorn: Gold: 570,000; Silver: 360,000; Bronze: 120,000 (Total 1.05M x 200% = 2.1M)
As you can see, the total for all 3 events (if you Gold all 3) is 6M credits...added to the 6M from the first 3 seasonal events gives 12M. If you haven't got the full 12M, then either there is an issue or you completed some events at less than the full 200% (the first events were live before the 200% login bonus was at 200%) or you didn't gold all of them. Hope that helps