Hi Sue, thanks for getting back to me.
We were told by an agent that we would have to pay school fees. Since posting my first comment on this I have now discovered on education web sites this is because on a student visa you are not paying taxes.Therefore have to pay school fees.
We are still looking in to this and the costs of it as it may differ from region to region..I would advise others to look into it to, if going down the student visa route as you don't seem to be told it at the start.
The cost is also in pounds not dollars so as you can see is very expensive!