Not enough sites in Noth West

How many caravanners in the North West find it almost imposible to get on a site?   There is a woeful lack of sites and number of pitches in the area, I have many times regailed this lack in my views as part of the reviews I have been asked to fill in online.  We are carers and as such cannot go too far for a weekend away in case we get called home, trying to get a local site for a weekend is impossible, they let members book for one night, usually a Saturday, thus losing revenue for people who want 2 nights! I believe a 2 night mimimum at weekend would help!  Also we have a Caravan Clib credit card which we spend a great amount of money on each year, yet the site night vouchers we receive are useless as we cannot get on sites, what is the point?  Please let me know if anyone else feels as let down with the club as we do at the moment.