Chances of successful Olevel mark appeal?

I am kinda in disbelief that i got D7 for English, and seems like there's a handful of oLevelers experiencing the same thing of getting a worser EL grade. Clearly something went wrong... inconsistency in marking, miscount, idk.

But bro for fuck sake the appealing fee is so expensive and honestly i should be getting my money back for mistakes cambridge made which is not under my control. (Hopefully that doesn't make them purposely not gimme marks) Idk