Hi, if you don't have any airtime credit
(dial *100# to check )
to cover the charges, credit can't be taken
giffgaff is a payandgo network so no charges can be taken from your debit card /bank account
But that's not to say you shouldn't take any action
If you were paying the charges, you would receive a receipt type text from 30090007 or 30090009
have you received any of those?
Look on your usage statement page
and the airtime usage
Do you see any charges in the premium rate total?
And how much?
The text to 83463 will cost 10p
so if you do have at least 10p credit,
Text the word STOP to 83463 now
You'll receive a reply confirming you've unsubscribed
Its then important that you the 03 customer service number
Press to speak to someone in person
Explain that you've been receiving texts each month advising that you're subscribed to a premium service
Argue that you never knowingly subscribed to anything and insist that all owing charges be wrote off
(which if it's over 3 months, will be £50 to £60)