GiffGaff is currently the best pay as you go mobile phone network around, with their cracking deals they have on offer, that give you lots of minutes, texts and unlimited internet for so little, compared to other pricey networks, you can't really complain with the service they provide. They also run their network on o2, so getting a good and reliable signal is never a problem.
If you have been on there official GiffGaff website and have had a look at there goodbag offers you will notice that their is a £5 goodybag listed and you might be considering taking it. This is if you're that type of mobile phone user that don't need tons of any network minutes, texts and mobile internet. You might be thinking that you can purchase a £5 voucher from a shop that provide a paypoint service, top your sim card with £5 and add the goodybag to your sim card.
However, for some reasons GiffGaff don't do a £5 credit top up voucher, they have set customers a minimum top up amount of £10. This is disappointing for some people that don't want to spend £10 or more a month and are on a strict budget. So if I have suggested you some alternative networks that allow customer to top up with five pounds, they are: Vodaphone, Virgin and Orange.