No
Cha is used typically for charming mobs, (and for getting better shop prices).
The necromancer does not have Cha check in the code when charming.
Tis why a Necro charm will typically last longer on average than an Ench, (even when the enc has max cha).
Al tough the Vendors will hate you even more, (so I just dislike them back .. typically with my pet and a few dots and a fear or 2). 
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