shan in East york

I selected AA Floors to do my flooring(material and installation) going by the reviews posted in Homestars. To my surprise i find lack of professionalism dealing with the store. I have paid full amount for the material 2 weeks in advance.also called them twice before the installation day (5 days,2days prior).To my surprise the under padding was not the same mentioned on the invoice. When called the store they said they dont have stock for the one i chose and it wont be avilable for next three weeks. they could have informed me the same when i made follow up calls prior to the installation so that i could have resheduled the installation date and so with my furniture movement to other rooms. Even i was promised by the store to have my stair nose stained to the flooring color,the subcontractor was reluctant and he was asking me to go and get all the required items form a store to do it. Finally he did with much hesitation but just stained it and to put the final coats he gave me list of items(sand paper/varnish,brush) to buy before leaving . Now i have to buy those items and follow his instruction. Even though I requested for oak reducers and t-molding finally settled with MDF ones as the sub-contractor came with those ones. My question why the sub-contractor was not instructed accordingly. Why was he showing his frustration to me. I could have stopped the installation as i did not get the requested items even though i had paid for those 2 weeks prior but did not have a choice to reschedule as moving the furnitures was not easy at all for me. Please be aware of these facts before selecting the store. Thanks, Shan