as per the T&Cs
5.11. In addition to our standard terms and conditions, all usage must be for your private, personal and non-commercial purposes. You may not use your SIM Card:
a) In, or connected to, any other device including modems, dongles or any other way to connect to a PC;
c) in such a way that adversely impacts the service to other giffgaff customers.
d) goodybags which include unlimited data browsing, allow continuous streaming of audio/video content.