I too my gmdqughters phone up
monthly ans within days she has no credit left despite having only used it at hime
connected to WiFi and not making calls- why??
Hi and massive welcome @freyafaz
Can you please check your top up went through for your grandaughters phone,you can do this by going to your my giffgaff page,click on my payments at the top of the page,click on "my order history" it should show the payment for your grandaughters top up if the payment is not there then the top up has not gone through you will need to do it again.
Make sure you are logged into the correct account when checking for the top up.
All the best