Unauthorised top up
I don't have PayPal on my account but my PayPal account has debited £5.00 but I didn't authorise it. Is there anyway I can find out the phone number that was credited? I have the transaction I'D.
No, @nigelandmummy65 you won't get any information from giffgaff regarding the number.
You need to report this as an Unauthorised Transaction to Paypal and let them deal with refund and follow-up matters.