I was going to come back and answer properly but Steve beat me to it with the right info, sorry for my flippancy, I was feeling mischievous |
He made me do it...
😞 There are some applications you can get too if you have a smartphone.
A common one is called 'Call Blocker Pro'
I've never tried these apps before but I've heard they work and are pretty cool.
If you are receiving phone calls from a company you can always ask them politely to stop.
If however it isn't a company then you may want to consider changing your mobile phone number.
Give O2 a shout and they should do it for you. Providing you haven't done this recently they'll do it for your free of charge.
You will however receive a new voicemail box which means if you have any saved messages stored in your current box they will be erased.
If it's a withheld number that is contacting you and you'd like to find out who it is to report them to the police; O2 can also monitor your line for a few days and contact you with the results.
If you need to do this make sure that you write down the date and times this person/company is calling you so you can collate your findings.
I should also point out that if the calls you are receiving are abusive or threatening I would advise that you contact the local police to let them know.
I hope you sort it.