Bad service

I am appalled by the level and quality of Superbalist Customer Service Agents. I placed an order and not all of the items were delivered and when I call in to query I am asked why did I take so long to make a follow up....Are they not tasked to ensure that when an order is made it must be fulfilled and if not, they need to do run around yo ensure that the customer is happy. The Agents name I spoke to is Sipha.....the worst, uninformed, bad communicator and her tone very patronising. Is any quality assurance performed to review the calls. Very very bad customer service