You need to be patient, now it is very difficult to improve the rankings, you have to do is improve the quality of their posts, some levels can give a little very little, if you publish the post quality is not high, others can not give you the message "advantages" .
Most of the people aren't sending the merit any one. If merit will be sent your account merit will be go down. So most of the people increase the quality post for merit increases. It good ideas for improving the post quality. But you will not get the merit your account post will be increase rank is not increased. So if need merit you will improve the post quality and give the information to the other people to plan to invest.