Simply flash o2 firmware if this bothers you.
Indeed. It does look good. Personally I'd be nervous of smaller random 3rd party sellers, but that's just me.
Cheers. I don't *think* I'll ever need to use that facility, but useful to know. TBH I'm more likely to use this deal as negotiating leverage than to take it up, but ta.
CAUTION: Wi-Fi calling will not work on phones purchased from third party traders such as CPW, only works on phones purchased directly from O2. I fell foul of this, (no phone signal at home or work so Wi-Fi calling is essential) took moths to get my number back and charges they tried to make against me. Sorted in the end but a lot of hassle.
https://www.hotukdeals.com/deals/samsung-galaxy-s9-64gb-on-ee-30-gb-data-unlimited-text-minutes-affordablemobilescouk-uswitch-33pm-x-24-months-792-3045355 This is definitely a better deal, £772 total price with more data