sheby83 Your top-up credit balance might have been reduced by Apps running in the background or updating using giffgaff’s mobile data services (at 5p per MB). Please take a look at your Recent Usage Statement as this should show how your credit has been used. Please note that the information displayed is up-to-date as of the end of day before yesterday. Any transactions/usage made yesterday will show on this page from 8am tomorrow and today’s usage will appear from 8am the day after tomorrow.
If your credit has been used by mobile data, please make sure that within your Apps Store settings, you select the option for Apps to update via Wi-Fi only as this will avoid Apps updating via mobile data. Also, Apps running in the background can also use mobile data without you being aware of it, so if you don't want this to happen, please switch off mobile data when you don't need it.
USING AN iPHONE? Please turn off the Wi-Fi Assist feature, as this uses a Wi-Fi/Mobile Data combination to increase data speeds, even if mobile data is turned off. Please see the official Apple instructions for full details on how to turn Wi-Fi Assist off.
If however none of the above apply to you, please raise an an agent case and they'll look into this for you. It can take up to 24 hours for a giffgaff agent to reply.
When a giffgaff Agent responds to your enquiry, you will receive your reply within your dashboard's message section. Thanks.