Just got back off holiday and gave your suggestions a whirl.

If you remember the thread I asked about removing wax from leather shoes and
I have made a mistake putting them on. After several suggestions someone
mentioned White Spirit. So Sunday I bit the bullet and got a Microfibre and
white spirits and attacked them. After 4 tries I finally removed all the
wax. I then put them in the sink and washed them down trying to remove the
smell and left them out overnight. Today after 5 coats of brown polish they
look like new, they are just like they were when I bought them, only a
slight bit darker but they look great.

Just wanted to come back and thank you all for the help and advice you all
gave.