A very warm welcome @yarabb to Giffgaff and our community!
Here are a few handy guides to get you started.
Take a look at the goodybags available, to ensure you are getting the best value for your money
What is included in the goodybags allowances?
We are all here in the community to help and you can ask your questions here
Sometimes there will be things we can't help with such as;
You will need to contact an agent for these.
Get started with payback.
Don't forget to say thank you to your fellow members for their reply - best answer.
Good luck and ask away if unsure