Sorry to say Giffgaff have not got a phone number to ring but your in the right place to ask the members for advice.
Or here is the link to speak to an agent about an account related problem.
Agents can take up to 24hr to reply but usually
they are quicker than that.
Hey @nuttychick1 what is your issue? If you ask the question here first then you'l be directed in the right direction if no one on here can help you with your issue.
As there's no customer service phone numbers on giffgaff im afraid. Everything is done online so you'l be able to speak to an agent but only via messages.
But before trying to contact an agent and possibly saving your time and theirs see if anyone on the forum can help you.