Hi Kim S,
Welcome to the Vodafone eforum From all of the team.
Its always nice to see a new face as well as a local one on the eForum
I have takena look at your postcode in particular and can see that although there is currently no issues with your local site, you are on the edge of indoor 3G coverage which could be causing the fluctuation of connection issues that you are experiencing due to something called cell breathing, this is when the signal area is redced due to a high number of traffic on the cell site at that time, when this happens if you are on the edge of the signal area it may cause a drop inn connection.
However, there are also improvements planned in the area within the next couple of months which will increase the signal strength and bandwidth available in the area so this should get better in the coming months for you.
If you did wish to cancel you would need to give 30 days notice and pay off any line rental left on the agreement before VAT with a 2% discount.
James
eForum Team