:stupid:
Seems like you're dealing with an opinionated asshole (TM).
"Somebody who doesn't want to speak on the phone is clearly hiding something?"
???
I can't even comprehend the reasoning behind this. There's a multitude of reasons why someone would refuse voice communication, from serious health problems — physiological disorders, psychological disorders, voice/speech disorders; muteness, aphasia — to the issues on a verge of convenience, eg. not knowing the language well enough (or at all), or temporary issues like in OP's case, of not being able to phone from a certain location for a certain amount of time.
Sure, I might be stretching it a bit with some of the examples here, but it doesn't matter at all, the underlying issue is the same in any and all of the cases — why should the phone call be an imperative for you to get paid for the work you've done?
The terms state you get paid $x per a valid lead. You sent them Y leads, certain % of which will normally be nullified for whatever reasons (validity, quality, shaving, etc). This is the key point and only point where it's decided whether you get paid or you don't get paid for your work. The traffic sources, lead analysis and all other crap goes here.
If they decide the leads are ok, that the promotion itself isn't suspicious, that they will indeed profit from your work (meaning you were of value to them), that you should get paid according to the accepted terms...
... then it doesn't matter who you are, what language you speak, whether you're in mood for random phone calls, or anything else.
It doesn't change anything. Sure they might resort to the "address verification" argument, but if above is to be true, then that's not their issue at all.
"This is a business not a game I need to speak to you on the phone"
Business is primarily a process of generating and exchanging value (like exemplified above), that's all what matters here. This whole sentence sounds more like something you'd hear from a 1940's film-noir gangster that a sentence that obtains in the real world. Not willing to talk to them on phone (for whatever reason, if any at all) doesn't invalidate all the work you've done for them, it doesn't turn everything into a game.
Then the TOS stuff in the end... it kinda gives me an impression that they're looking for a quick way to nick your money and write you off.
But anyway...
Sorry for the rant, hopefully someone understood what I wanted to say here... English is not my first language, hence the reason why I get irritated when someone insists on phone calls (paypal, cpa networks for approval, etc), why I wrote this post, and why I might have completely failed to say what I wanted to.
Oh, and...
"Who goes on 2-month vacations?"
Whoever the fuck wants to go on a 2 month vacation, that's who.
Good luck with this, OP, I hope you get your money.