Hi chrisj93,
Thanks for your post and welcome to the forums. It's really great having you on board with us. We're sorry to hear that you're having an issue with this.
You've mentioned that this has been happening for quite a while. Do you find this only happens when in certain locations or is this all the time?
When using your SIM in another device, does the same thing happen?
Pop back and let us know.
Thanks,