....Hi. I have dripping Subscription Plan with six levels. each one two weeks

Hi. I have dripping Subscription Plan
.with six levels. each one two weeks
When user pay for subscription in my site, all works good
but when I create new user with dashboard, and I add my dripping Subscription Plan
.level 1 beginning, but after two weeks not change to next level
what I need to do to fix it. For the transition from level to level will automatically?