I had the same issue, Google escheated the money to the state of Delaware (where they're incorporated) after a few years though. Consider checking Delaware's unclaimed property site, you may find your money there.
No, I just had to open a support ticket. That said, it definitely added significant friction to signing up, and took two days for the ticket to be approved.
They also aren't allowing "throwaway" VoIP numbers, so you can't even mask your main phone number - I tried signing up with both a Twilio number and a TextNow number and both failed with a "This number is not supported" error. I ended up opening a support ticket and they allowed me to bypass that requirement only after I explained that I don't have a traditional phone number.
There isn't a hard cutoff, those are the recommended grades to receive an offer. I'm currently in the Computer Engineering program here and I can say out of my class, most had around a 90. That said, CE is one of the less competitive programs.
I feel compelled to respond to this, as I know from first-hand experience it isn't true. The pressure is definitely there for Canadian high school students, and 90 isn't enough for some schools anymore. Programs like University of Waterloo's Software Engineering and Mechatronics Engineering and University of Toronto's Engineering Science all require 95+ AND extracurriculars. Same goes for the "best" schools in other categories - Queen's Commerce for business, McMaster's Health Science for premed, etc...
If I didn't take any criticism, how would I improve? :)
As to the fact that this is my first post here, I've been a lurker for a long time, and finally had something good to post. I've been on reddit and a few developer forums under this username (and interwhos) for much longer.