Otherwise just pick up a cheap data sim (I picked whatever was suitable from Carphone Warehouse) and stick it in an old phone if you have one. I plugged my phone into one of these https://www.amazon.co.uk/dp/B073TSK26W?camp=1634&creative=6738&tag=buro9 that I had lying around to provide a network connection but that isn't necessary.
I actually, somewhat unexpectedly, got the sim for free. I got a 30 day rolling contract (100GB of data per month) and cancelled it within 14 days (my internet had finally been installed). This triggered a full refund even though I'd used about 90GB of data.
The obvious is to just use your mobile.
Otherwise just pick up a cheap data sim (I picked whatever was suitable from Carphone Warehouse) and stick it in an old phone if you have one. I plugged my phone into one of these https://www.amazon.co.uk/dp/B073TSK26W?camp=1634&creative=6738&tag=buro9 that I had lying around to provide a network connection but that isn't necessary.
I actually, somewhat unexpectedly, got the sim for free. I got a 30 day rolling contract (100GB of data per month) and cancelled it within 14 days (my internet had finally been installed). This triggered a full refund even though I'd used about 90GB of data.