Thank you very much indeed for your help.
As for the expression TO TAKE A BRAND DOWNMARKET, our book of idioms gives the following definition: to sell premium brands cheaper.
The thing is we are currently working at revising the six books of idioms our students use. Some of the expressions sound out of place, I do not remember ever coming across them in the context they are in the books.
That is the reason I bothered you in summer, asking to look at them the way they are in the books, plus some exercises we made up. I really am sorry for my being so cheeky.
I always share the feedback I receive with my students and encourage them to register and post their questions. Slowly but surely they have started to take an interest.
Once again, thanks a lot.