sophiejam92 Thank you for contacting the giffgaff Community.
There may be a problem with a Mast in your area, use the link below to enter your postcode and see if there are any NETWORK SERVICE problems in your area. You can also use this to also check COVERAGE of 2G, 3G and 4G in your area. https://giffgaff.com/coverage-and-service
As giffgaff uses the O2 Network, be sure to check their Network Status also: https://status.o2.co.uk/
PLEASE NOTE: Mast issues are maintained by O2, rather than giffgaff so unfortunately it is out of the control of giffgaff as to when these might be repaired if there is an issue with a Mast in your area.
A useful App for your Phone is the O2 My Network App, this allows you to check Coverage and Service on the O2 Network (used by giffgaff), you can get it from here https://www.o2.co.uk/apps/my-network
You could also try a Manual Network Roam within your phones Mobile Network Settings to connect to a different Network. See here on how to https://giffgaff.com/help/articles/how-to-perform-a-manual-roam
Alternatively if there isn't an issue with a Mast in your area and Manual Roam doesn't work contact giffgaff Agents to investigate further for you : https://support2.giffgaff.com/app/ask/Calls-texts-and-data/My-services-arent-working/form/
Please also ensure that you give the giffgaff Agent as much information as possible in your message to them so that they can assist with resolving things for you more quickly, if your message is vague and doesn't contain all the facts then this will take them much longer to address things and sort out your problem.
Allow from a few hours up to a maximum time of 24hrs for Agents to respond to your request which will show here https://giffgaff.com/support/questions when logged into your Account Dashboard : https://giffgaff.com/dashboard
giffgaff Agents work from 8am until 11pm Daily.