When I first started out, I didn't yet know my translation limits. As such some of my jobs had poor reviews, and others 10/10. However, since then I have completed many more translations, but none of them have been poor enough for a customer to submit it for a review. I'm very proud of the last 15/20 jobs I've done, but none of them have been reviewed and so I am stuck with a mediocre score.
Can I request that a random piece of work be reviewed?
If I can't request, roughly how often are the "random" reviews conducted because it's been at least 6 weeks since my last one.