Hi Zoie,
Thanks for getting back to me.
I have checked for issues in my area and there don't seem to be any.
I haven't tried the sim in another device, I will have a go at that today.
I have gone to network selection, it was selected as automatic. I unchecked that box to see if I could manually look for the network and now there is just a buffering circle next to the 'automatic'
Hope that makes sense.
Just a note, the signal does sometimes come back every few hours or so but only for a few minutes then drops out again.
Best,
Amy