Thanks for you input JB. I've now discovered this. Just think that landline charges are ridiculous. My phone calls are less than £5 pm but I need the line for my wife who is not mobile (or any other tech.) savvy.
Hi Braby thanks for your comment. Unfortunately (virgin) mobile coverage at home is poor. If a get a call I usually end up having to run into the front room and press myself up against the front window to get myself heard. I really do think landline rental charges are unreasonably high at £228 a year, although I believe you can get a discount if you pay up front- but who likes doing that?
It would be worth checking if another mobile operator other than Virgin has better reception where you live - for info. ee actually provide Virgin's mobile network. I took the one year upfront line rental option to save a bit of money, which is fine as long as there are no problems. Unfortunately I have had endless issues with my Virgin landline and since they have already had my money it complicates things if I decide to leave. Good luck!