Catch 22. If they told you, something song the lines of, " I know you want part A, and it will be X time before it will ship... BUT! We have OUR brand, that you can have RIGHT NOW!"

To some, that may sound more likes trying to push there own product on you. That may turn customers off as well.
If I wanted YOUR brand, I would have ordered it! I want THIS one.

Same might apply if you go to the parts store for something and it will be awhile before the name brand stuff will get there, but the store brand is on the shelf.
Either way, sorry you were jerked around about lead times.