Unacceptable customer service

So Telkom kept advertising quick upgrade process etc. So I went to the northgate store and requested for a phone upgrade this was on the 7th of Feb, I wanted an S6 in white so I ordered that but they said they didn't have one in white but they can order and it should come the next week. The week passed I did not get an feedback on the progress of this. I went again on the 13th of Feb and they told me its still not available but stock should be coming the following week. Still no feedback the whole week then I went again on the 20th and the white phone wasnt in stock but the black one is and cause im just so tired of waiting I settled for the black one. BUT there was a pending approval apparently cause the consultant cancelled the one order and opened a new one (cause its now black) and told me the approval should take hours and I should be able to collect the phone during the week (cause the phone was there - I saw it) it was just pending an approval step. Finally I go again today & they tell me its out of stock. Like personally this is unacceptable, firstly it takes a month to get an upgrade. Now the phone I was meant to get is given to someone else after waiting for so long??