Oh dear olivia, please don't get upset. I know how you feel. My mum had the same problem. We've done every other diet going together so we decided that we would do LL together too. But when we found out the cost, my mum just couldn't afford it. Well, I knew how much it meant to my mum to loose the weight, so me and OH have dug deep and we are lending her the rest of the money each week. I know she will pay me back but I know she is so glad that I could do this for her.
Ask family and friends, sell things, borrow the money. It really is, as BL said, worth every penny.
If you can live without the counciling, then Cambridge is always an option too and from what I have read it costs people about £43 per week. I do believe that councilling is the key to keeping the weight off so I would rather pay the extra to give myself the best chance of keeping it off.
Please let us know what you decide. Take care hun x x