Hi. I can't make calls or receive any on my mobile. Can't phone 150

[Whaleb]

Hi I just bought this mobile and can't receive or make calls.

I want to contact 150 but phone keeps cutting off. What can I do please?

Thank you.

[bristolian]

Are you on PAYG or pay-monthly?

Are you in the UK or abroad?

Does your phone show network coverage?