I messed up my faction and can't buy spells!

[moarwade]

Iksar Necro. I have been in Qeynos Hills for several levels killing the humanoids near Surefall Glade entrance, with the occasional trip to Qeynos Aqueducts to vendor.

Last night, someone asked for help killing Varsoon and without thinking, I ran over and helped out. The next time I went to the vendors as a newly leveled 29, they wouldn't sell to me! Conning dubious. (also I died and deleveled trying to get back LOL. It was a classic EQ moment for sure)

Varsoon was the only other factioned enemy I killed, and the wiki said he was a faction hit of 30. So I killed Neclo Rheslar who is a faction boost for the same ones 3 times (wiki says 10 faction gain) but the vendors are still dubious.

Am I on the right track? Should I just keep farming Neclo or is there another way to fix this? Thanks for any advice