Re: How do I Access the VM Daily Data Service (50p for 25mb)?
Virgin mobile charge £1 pr day for upto 100MB
With regard to using mobile data on your Moto G, I don't have this particular phone but most Android phones are similar in this respect. You just need to "enable mobile data", usually if you slide your finger down from the top of the screen, it'll be there in the settings (just enable/turn on). If you can't see it straight away, enter settings & look for it.
Remember to turn it off again at the end of the day or as you reach 100MB or you'll be charged another £1.