Roaming

[Mitra]

Hi, I want to use my sim card in Canada what is the best and cheapest option for me?

[Enlli · Accepted solution]

You posted in PAYG if that is the case forget using your O2 SIM on anything other than WiFi 

Alternatively a Canadian SIM

This page will tell you your options

https://www.o2.co.uk/international/using-your-phone-abroad