If a level drops...

If a level drops...

Hypothetically, just wondering.

If someone is Level 3 and his rankings drop below 90% due to some unhappy buyers, his level drops to Level 1.

Here's my question:

Does he have to start all over again, making 25 sales and all the other stuff, or is it enough just to climb back to that 90% ratings and his level is automatically back to Level 3?