In the meanwhile I got several offers for about 30% or 35%, a few times 40% and once even 45%. But just now Jasmin is giving away up to 100% Bonus Credits for a limited time! Well, I "only" got 80% but I was fine with that and took the offer. 
You have to use these Bonus Credits within the next 10 days though.
Here's Jasmin's official statement:
[h3]Weekend Deal: Up to 100% Bonus Credits!
[/h3]Your weekend just got hotter!
Until Saturday, November 15, 6 PM EST / midnight CET, get up to 100% Bonus Credits with your next purchase.
More Credits mean more power in the $1,000,000 Challenge.
Increase your chance to qualify for the Challenge, where members with the most tickets compete for the main prizes of this round! Every show, every minute, every ticket brings you closer to victory! Use your Bonus Credits before November 24, 3 AM EST / 9 AM CET - they’ll expire after that.
You have to use these Bonus Credits within the next 10 days though.Here's Jasmin's official statement:
[h3]Weekend Deal: Up to 100% Bonus Credits!
[/h3]Your weekend just got hotter!Until Saturday, November 15, 6 PM EST / midnight CET, get up to 100% Bonus Credits with your next purchase.
More Credits mean more power in the $1,000,000 Challenge.Increase your chance to qualify for the Challenge, where members with the most tickets compete for the main prizes of this round! Every show, every minute, every ticket brings you closer to victory! Use your Bonus Credits before November 24, 3 AM EST / 9 AM CET - they’ll expire after that.