At the beginning of this month I was having problems with the ads. I could view them but didn't receive the credits due so I reported the problem to Live Gamer.
I was resigned to hearing no more about it but yesterday I received the following reply:
Sorry about the issue with the commercials. It looks there was a system
error, and the missing Bonus video credits will be added to your account
within the next few days.
Today ALL the missing credits arrived.
Thank you for a job well done.