Where I went, i suppose that would equate almost to resitting an exam, where you just failed the final exam and met all other qualification, These jamaas were very few and they used to take like seven years to complete a degree. You could:-
1. Pay to "re-attend" all the classes, so that everything is "re-drilled" into your head.
2. Pay and wait to "Re-sit" the exam, and maybe wait for another lecturer to offer, you will just pay for the exam. Or re-sit the whole course and pay for it and do it a fresh if your score was deplorable sijui 35% or something like that.
3. The HOD or tutor could also refer you to s "smaller course", for instance you fail in freshman maths, you are sent down to technical maths e.t.c so you can "come up" again to the level, he thinks your problem is English, that is why you are not understanding things, (it used to help many) he refers you to an English class, and voila from D+ all the way to C.
Ras Kienyeji Man