The weekly tokens list is calculated by how much you win / lose in the casino. Basically when you place a bet an equal value is removed from your weekly tokens, when you win an equal value is added to it. However, there have been some bugs with this. Black jack for example was not correctly adding to a players weekly tokens on a natural black jack.

You can now view your weekly tokens progress in Information, as you can your other weekly values. Could all players please keep an eye on this value as they're using the casino and report any times it does not correctly increase or decrease along with your tokens.

Please bare in mind that purchasing tokens in the store or spending them, along with free tokens at the midnight tick should not effect this value in any way.