Hi there, I've never used data before but have decided to add some onto my prepaid plan with the 500 mb booster. However, I've turned my phone off then on, and nothing's changed. I don't want to connect to a wireless network, I want to be able to connect wherever I am going with the data I just bought. How do I access the network? I have a samsung galaxy q. Sorry...I'm not an expert on data plans! Thank you!!