The latest patch has been reverted in due to memory issues on 32-bits machines. As a result, the new HUD's and the Pyrion Flax announcer no longer work in the current version of the game. There is no need for worry. Your purchase is safe, and the HUD's and the new announcer will be rolled out again in the next patch.

If you really wish to get a refund on your not working items as a result of this, you will have to contact Steam Support. Monetary issues are not handled on this forum.