Fitting venetian blinds

matchfacts

I'm trying to put wooden venetian blinds at three windows - two fairly big.

The design of the window means that the "usual" bracket where the blind slides in from the front aren't suitable. I have been told about other brackets that will do the job, but can't find a supplier.

Does anyone know any companies which supply blind mounting brackets seperately?

Just to add to my frustration, there is a company trading under a number of names and the cheaper cannot supply the bracket, but the more expensive can. They even have the same customer service but can't help, and I refuse to pay twice the price for the blind!!!