I requested for adsl line to be ported back to telkom and nothing has been done yet

I have paid my bill in full until end of January 2018. I have cancelled my account on the 20th of December 2017 which is also the day i paid the account in full. I have requested on the 20th of December that the ********** 454 adsl line must be ported back to telkom but nothing has been done about it. I dont care about the account that will only be cancelled end of January. I just want the adsl line moved over to telkom immediately. Mweb said it can be done but it doesnt seem that they want to do it. It also does not make sense that it takes 7 day for something like this to be done as it is not a physical line that must be moved, but simply a few clicks on a button.