Too many problems

Ive downloaded this just for the Buffy the vampire slayer season 8 comics, and some issues arent even available, like number 31 when 30 and 32 are. I bought number 26 and could never download it, now it has disappeared, and I dont know if Ive been charged or not. Fix it ASAP please, or I want my money back.

Olympus2.0 about Dark Horse Comics, v1.3.6