0800 costs

[Baden]

How much do calling 0800 numbers from mobile?

[Cleoriff]

@Baden 

It's free.

https://www.o2.co.uk/help/account-and-billing/other-numbers-and-charges 

0800 and 0808 numbers

It’s free to call freephone numbers starting 0800 or 0808 from your mobile phone or landline. These changes came into effect on 1 July 2015, as part of the UK Calling changes.