You're doing something very wrong. I spent 9 days in Scotland and used less than 8GB of data from a Vodafone SIM I picked up for a similar price. My phone was

You're doing something very wrong. I spent 9 days in Scotland and used less than 8GB of data from a Vodafone SIM I picked up for a similar price. My phone was in hotspot mode then entire time sharing the data with 3 others phones and a couple tablets. Also if you're using Google Maps then I strongly consider you cache offline map data as it will dramatically reduce your data consumption as it's updated via Wifi automatically. * It occurs to me that you might have been using Satellite view. Don't that's a huge waste of data. The traditional maps view is vector data (i.e. tiny) where as satellite photography consumes a lot of data.