If you're sure that your switches are the same as those in the original post then yes, that part should be correct. If it's just single-plate switches that you've having problems with (i.e. there are no fuseholders or other unusual grid parts), it would make more sense to go down to your local DIY store and buy a complete replacement switchplate.
Thanks for your reply.
It is actually one click unit out of three i.e. the other two are a fuse holder and fan switch and looking at the likes of MK etc I can't find a similar product so, having read the original post on here, I concluded that the easiest and cheapest option is to replace the "click unit"