How do you resume a BlackBerry data plan after topping up?

My credit went below £5 and my data plan was stopped, so I topped my phone up and it's still not working. Last time this happened, I topped my phone up and it was working again by the next day. Does anyone have any suggestions?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).