Sure you can!
You can also use different CDNs and servicies like npm and bower. More about it in the docs.
Nope. multiScroll Extensions are sold separately thorught the extensions page.
Sure! Just get the license that fits your needs and go for it!
You'll get a link to the invoice on the purchase confirmation email sent by Gumroad, the payment gateway platform.
Unfortunately that's not an option this time.
However, you can of course try multiScroll.js before purchasing the license, making sure that it fits your needs. So please make sure to do so before purchasing it.
Sure! Gumroad, the platform used for the purchase, allows you to add a VAT number. However, you are only allowed to do so after the purchase.
As detailed in Gumroad's website (the payment gatwway platform), you'll be able to get a full refund for the VAT value in 2-3 days after the request