Hello FT, Heading to beautiful Vienna for 2 weeks in January.

Several questions:

1) Yesss https://www.yesss.at/home



It seems like Yesss might be the best provider for my situation might be best for my pre-paid SIM needs because from what I read a couple weeks ago*** it allows
- international roaming I will connect via Frankfurt or London, and might decide to overnight there.
- tethering This is mostly a work trip. I won't need it much, but when I do, I'll need it urgently.


*** don't recall where I read that now...maybe here: prepaid-data-sim-card.fandom.com/wiki/Austria


2) Online registration
My hotel receptionist wrote me that
"You can buy SIM Cards for Yesss! and other Providers at every “Billa” Supermarket and do the registration online.
I would prefer Yesss!, Bob ( available at Billa) or Hot! (available at Hofer Supermarket)."

Could I really do the registration online if I'm not a resident of Austria or EU? (I'm a resident of Texas, USA )





3) Which Yesss


I will be using a ton of data during this time, and would lean towards the 'Compete XL' version

Not prioritizing costs, does this look right for intl roaming and tethering?
https://www.yesss.at/home