help please

[#1]

hi my friends girlfriend has switched his account of and she can't use her phone how can she resolve it ? please can someone help 

[#2]

Hi,

What do you mean by “switched his account of”?

Thanks

[#3]

@ashleymurphy1988

So i think you mean her sim has been deactivated due to non usage in a six month period, but dont worry, to sort this go here and order another sim, the same account can be used.. Order a free SIM 

Or you may find one in your local Tesco, Sainsbury's, Poundland and in more independent grocers and news agents .

Once you have a new sim then you activate it by going here.. Activate your SIM

its very easy to do , but please come back if you need more help.

[#4]

Is the account in her name or his name? Is it a changed password or something on the giffgaff account?