Telephone system not usable, No service from Telkom

I have ordered a DSS Panel for the UPDATED telephone system that Telkom has provided me, I had to wait since 2 October to 3rd December for the upgrade on a existing business account, We are customers since 2005 with Telkom,

Now the switchboard doesn't have a DSS Panel and was told i should order it from Sales, I have ordered it the early December and still nothing is been done im calling everyday without luck, Im frustrated because all i hear it has been escalated they will call me its now a month and a half and the only im the only one calling them, Im now at this stage where im being rude out of frustration but nothing gets done, I tried saying calm, Talk respectfully, to where I cant keep calm, Ive got a switchboard without a purpose and I have to pay a salary to our switchboard operator, But the switchboard is incomplete,

What should i do cancel everything and get a company that is willing to do business or is Telkom going to do something about it?