Ghiillie - I have a spare O2 4G dongle which you can have to see if it will help you. You would need to purchase an O2 data sim in order to use it.
It is the O2 4G Pocket Hotspot Huawei E5573 from mid-2017.
PM me your address if it is useful to you and I will put it in the post straight away. It worked perfectly when I was moving into our new house last year while Openreach took 7 weeks to activate our line.
Edited by DanielCoffey67 (Mon 03-Sep-18 12:14:36)