Pathetic service from Sell Direct

Sell Direct offered me an upgrade. I received the phone and contacted them to activate my new sim. It's almost a week and still no activation. I contacted Telkom and they said that the commitment date from Sell Direct is 2 months later. it's almost impossible to even contact their helpdesk. Looking at reviews, no one has anything good to say about Sell Direct and it seems that they don't care. Can someone please help to put an end to their pathetic service and also to stop them from getting away with terrible service