Y'all might also think about creating BitPay accounts, and maybe funding them if that's an option, and learning how they work.
Account > guest checkout.
That's just the payment processor, right? I'm not sure how it happened when people bought their Avalon's but weren't you taken to a payment processor like Bitpay or given an address to send the funds to? Bitpay is for merchants and I don't think they want everyone trying to make merchant accounts (because that's all they have) just to make a payment.
Batch 2 used walletbit. You could create an account and get a nice receipt you can view when you login, or you could "checkout as guest", which gave you nothing but a bitcoin address to blindly send 75 BTC off into. No order number, no email, nothing. Mind you both walletbit and the avalon webstore were unstable, and you were lucky to get pages to load.
I used guest checkout and got a order confirmation email, a payment recipt email and a payment confirmation email, all within about 1 minute. It was easy.
Was that in "Batch 2 Wave 1", 03-Feb, or "Batch 2 Wave 2", some time later?