I may not be alone with my observation about the $5 bonus reward for members. Firstly I didn't know about the offer because my browser link to Renderosity is bookmarked to go STRAIGHT to the MarketPlace section and NOT the home section where this offer is being made.

Secondly this offer should be automatically added to any purchase that a member makes from the time when the offer was started or until the time that the offer expires, and the member should be made aware about this offer when checking out to complete a purchase.

If a number of other members have not claimed the reward yet then these are very likely the reasons for their ignorance about it.
As for myself I have been buying some products from the store but now find myself unable to use the voucher which expires very soon because I have already purchased items that I wanted so what happens now?