i use the freebie i got from o2 (they will send you 4) i top up £15 and that gets me 100 free minutes and 100 free texts a month.i don't use 100 minutes a month so it means i pay £15 every 2 months for calls to any land line or any mobile network :o)
if you have the sim card or sim pack is there not any numbers to call for help.don't know about virgin mobile,i'm on their adsl broadband which is a flakey connection to say the least.someone will know in the forums i'm sure
Virgin you can get 200 minutes to landlines or mobiles and unlimited text messages for £10 a month. Or if the phone is unlocked get an Asda sim card. 8p a minute for calls and 4p a minute for text messages.