I called and spoke to someone on the phone and they told me it has to be an Amazon purchase, however someone else asked this same question and there was a bit of discussion on the topic. I decided to buy the warranty here on Amazon and just give it a shot. They did accept my registration and my receipt from a product purchased somewhere else. I sent them a copy of my receipt as part of the registration and then called to confirm that everything was good to go.
Personally, I'd much rather buy electronics here from Amazon whenever possible. The only reason I didn't buy my computer from Amazon was because they couldn't match the student discount I got elsewhere.
Yes, it does cover laptops; the warranty I purchased was for a small laptop/netbook. Also note that you can purchase a Square Trade warranty on almost any product for up to 30 days after the purchase (but please check their fine print to confirm that).
Linus, that's a great question to ask. You may want to check Squaretrades Terms and Conditions for they may have an AU one also. I cannot speak for Squaretrade myself because i have no affliation with them. Hope this helps!
By Surface - are you referring to the screen, the cover or the key board?
You would have to check the documentation associated with a Pro 3. I do not know if the protection plan is a Boiler Plate - or customized for each type of computer. I am sorry I can not help you.
Not sure about some of your questions, but it did cover a new memory module for me that was not covered under Apple Care since it was added after market, but I could show that it was installed when I bought my computer and bought my Square Trade protection plan. I bought a new memory stick, sent a picture of an invoice to Square Trade and they sent me a check very quickly. I installed it myself, otherwise they also would have paid to have it installed if needed.