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Hi there, Google's official policy is that you should try to have the links removed before disavowing. I'm assuming you've sent out some emails and tried to have some links taken down, but you haven't mentioned link removal yet - only disavow. I'm just making sure. You say you disavowed links 6 times - did you combine those into a single file? Google will overwrite your previous disavow, so make sure you're combining the disavow lists. Finally, if they were ranking well based on bad links, they can't expect to simply regain their former standing without those spammy links. The spot checkers on reconsideration are always a little arbitrary, so you just have to deal with that. Your only option is to decrease the odds that they'll find bad links by either increasing the proportion of good links or decreasing the bad links.