Took several years using credit plugins on my site, but when I decided to upgrade to 1.7.1 in the comments of site users stopped receiving credits (as I have it configured so that when you make a comment on any wall will add 1 credit) thought it could be a problem of the corrupted database to test and install a new site (1.71) with only plugins credits, but nothing, users will not receive credit for product reviews. They can fix that?
by the way the plugins is very expensive ($ 99), so it should work better and have a quick response to questions...