Here's, presumably, the final word on this whole thing:
"Because the mailers fit one or two LP sets only, any additional LPs purchased need to be shipped separately.
We would typically hold your order until you paid for the extra shipping. We would also contact you about making the payment to us.
However, since you have already contacted us about this, please send $7.00 to
store@mondotees.com via PayPal and reply here when you have done so."
So anyone who ordered more than two LPs and werent charged additional shipping ($7 in the USA for example) then you can expect an email asking for additional shipping payments. I've no idea why they've shifted that onus to the buyer insteadnif automatingnit through their own system like they used to, but I'm guessing that it won't be "smoother" like they're hoping, but I don't run a label or a distro so who knows. Anyhow, I hope thus has been helpful to some of you. Cheers.