inconvenienced due to stock issue

Purchased a galaxy tab from markham store in kenilworth center. purchase transaction in itself was a nightmare due to issues with getting the sim card to work...40min later i couldn't wait around anymore and it still wasn't working. got it to work myself at home eventually. the purchase came with a keyboard which i couldn't figure out how to use, so had to end up going back to the store 4days later for them to show me. turns out the keyboard doesn't work and they have not stock meaning that i have to wait for new stock to arrive. wouldn't be an issue if they know more or less when this would happen, but nobody could give me timeframe from 1 week to 1 month or more or less. the told me i could \inconveniece"myself further by running around from store to store looking for available stock and have them swop out the entire device! And what of my information/data already stored on the tablet?!"""