Even if you could pay via credit card, I don't think everyone has a 7-9K limit, the payment listed is still Paypal - that's only 45 days protection.
You could do a wire transfer (one way payment, no reversal, no protection) or Bitpay (also one way, no protection and even more expensive unless KNC swallows the 5% or so conversion fee).
If they don't accept credit cards directly, which as it looks like they don't and won't, I'm not giving them a penny. Or more exactly, I would give them a reasonable amount to reserve my order and pay the rest once they actually show that they are trustworthy and have an ASIC; but they're not doing that either. Paypal is an all around horrible payment method.
They seem like they don't have a single spare moment to plan their next one or two steps, and most decisions are made and implemented in a big hurry, but then they go ahead and say that they actually do have the time to offer extra customer care to those who wish to transfer their pre-order queue positions and manually verify it, even though not only are they not forced to do this, not only do people not expect this from them, many are actually against it. I see their point, but it's not a good one, and they really should be rather dealing with one of the dozens of issues they have on their hands instead of dicking around with this sort of petty shit.
I'm not shouting scam here, to me they just seem.. well, lacking a better word, dense. That, or once again, really bad at PR, saying one thing and doing another, I actually hope this is the case.