Mike,
You can send the cushion to us if you want us to replace the panel for you. Thie cost for this is £60, that will be to have the panel cut and coloured, then sewn in to match.
We are also in the middle of setting a branch up in Hull so if you contact me I can pass their details onto you.
The leather could be fixed, but since it is most likely a problem with the leather, you could always get a re-occuring problem. So I would advise on panel replacement.