Telkom breaks promise

I ordered an upgrade to my 1Meg line to a 4meg line. I was told that it would be upgraded by 4 February 2015 and that it would take 2 working days. I then called Telkom today to find out what time they were going to do the upgrade only to be told that it was going to take between 7-10 working days and that there was no ways it was going to happen today. I find this unacceptable.