@Hollie1_
Does any mast issues show here for you:
https://www.sky.com/help/servicestatus/mobile
If not then you will have to contact Sky, perhaps via social media as there are links at the bottom to their sites as they might want to send you a replacement sim to try incase your one has developed a fault.
__________________________________________________________________________________________
If someone has helped you then please click on the LIKES button in their post.
If you need help please provide as much information as you can
