Hi, you'll need to contact o2 I recommend the Skype contact details
found on the below link.
https://community.o2.co.uk/t5/Other-Products-and-Services/Coronavirus-Covid-19-Community-Help-and-Support/m-p/1317461#M38608
Kurt
things to try.drop to 3g - in case theirs a mast issuetake sim out give
it a wipe - static chargetry sim in another phone if possible.try these
and let me know.kurt
