Flexi-Class times

Is it possible to request times for flexi classes? i have done some classes at available times but some in the chapter are not available at times i can do. I have emailed support but got no answer, maybe someone can tell me here.

Thanks in advance

When booking choose 1 on 1 instead of Group.
Then you can choose the time only and then afterwards tell which LTL lesson (or whatever grammar or topic in detail) you want to do.
It costs 3 credits, that is the difference.

I prefer the flexi class with other students to 1 on 1 to be honest.