I managed to get Mum's pre-op hospital visit forms done online, with a bit of help from my sister, who holds enduring medical power-of-attorney for Mum & is listed as her next-of-kin. I used the Lumia 1520 to supply the internet signal & the 2008 MacBook Pro I keep at Mum's place. During the process I received a text message saying I'd used 30% of my annual data allowance, which means there's 29 GB remaining with 7 months remaining to use it.