********** behavior at Eastgate Woolworths

I was disrespected and belittled by the staff and their line manager at the cell phone counter of woolies eastgate ,Michael Mbuyisa I bought a samsung A3 on the 26th of March. My phone was off i could not turn it on,i charged but nothing happened,that was on Wednesday and on Thursday i went from Randburg where i work all the way to Eastgate to take the phone in as it was already the 7th day. When i got to there the young man who was assisting me treated me like i was crazy and insinuated that i did not know how to use it. The manager spoke to me with contempt and insisted that i take the phone back home ,as he had switched it on and done a software upgrade for me, I found their behaviour appalling,other customers were staring while they were mopping the floor with me,can i please get a new phone,i do not deserve to have a fixed fone that is less than 10days. My number is ***