White rashes or speckles on chocolate are also referred to as 'bloom'. This can be solidified and crystallized cocoa butter or sugar crystals. You can still eat this chocolate!
We want to offer you the highest quality Tim Tams, so it is never our intention that you receive a pack of Tim Tams with these bubbles on it. We always check the boxes for bloom, but we cannot see inside all the packages.
If you accidentally receive a package of Tim Tams with bloom on it, please contact us and we will refund you.