Worst customer service ever

What a waste off time, money and breath on a delivery service that is nationwide but cannot get manager to call me back. I would say that the Mr D call center stuff really needs to go in for more training based on providing a good customer experience because from a scale off 1/10 the customer services that I have received was the rating would be 0. I have spent my whole Saturday trying to get my issue sorted out as I placed an order and paid for it, but I did not receive my for the past 2 hours with no form off communication from Mr d. Not only that, but I spent close to R100 of airtime based on me phoning the call center over 20 times to get my Mr d account blocked. Furthermore, I then get promised things from a so call manager “Matthew” which never happened, and I'm still waiting for someone from high to call me back and to make empty promises.