Several Mistakes - Forced Apology

Our initial meeting with Jennifer seemed very promising - we were to have drapes, sheers, bars and hardware to pull the drapes back installed on all the windows. When the installment day came all of the drapes and sheers were too long, and the hardware to pull back the curtains were non existent. They were fairly quick in altering the too long drapes (though I am still waiting for them to take back the drapes and sheers from the main window for alteration), but not only did the hardware never show now they were denying that we ever made this request. Besides a forced "And we apologize" all I have been told is that yes, the outrageous sum that has been paid in full will sit as I wait on their blatant mistakes.
In short, they are unorganized, unapologetic, unreliable, and over priced for such horrible service.