Check the coverage in your area to see if there is an issue. If everything seems fine, there may be a problem with your device.
Take a look at our Help Centre for advice. If you still have a problem, contact us via web chat. Our web chat is available 9am-5pm, 7 days a week.
If you need help outside of these times, you can still submit a question and leave your email address or mobile number. We’ll reply as soon as possible and you'll get an alert to your email of mobile.