@blurngr: it looks like we already responded to your ticket, but I'll respond here as well for your and Michael's benefit.
The terms of the PayPal Special limit you to using PayPal-only payment methods; that's just part of the agreement we struck with PayPal in order to offer that special and have it promoted on PayPal's site, so we're obliged to abide by that. This limitation is mentioned on our promo page for the special deal.
If you need to use any non-PayPal payment services, you can just register for a new account from scratch without using the PayPal Special promo code, OR we can remove the Special's extended trial period and discount and the PayPal-only restriction from your existing account, which may take a day or two. If you have already started a subscription with the discount, you'd need to cancel that from your Seller Admin (don't worry, your account will remain active through your currently-paid monthly term, plus a 20-day grace period if necessary), then email us to let us know when you've done so; we'll reply to confirm when you can restart your subscription at the normal price: