Appalling Service re order o***5

I tried to register to place an order on-line - my electricity went off and I had to call 3 times holding on for more than 10 minutes per call. With the assistance of Pumi I was eventually able to place a small order (4 items) and was promised delivery for Friday. When I received confirmation I noticed that the Street had been incorrectly spelt and should be 5 YEW and not 5 Yewn St. This is after I spelt it for Pumi more then 3 times. I advised them of the mistake 5 times email and on the phone. Then lo and behold I receive a further confirmation today in which I was charged R50,00 i.r.o. shipping., and as this was the first time that I shopped on-line there was NO SHIPPING CHARGE. I emailed then called and spoke to Weston and told him to cancel the order but asked to speak to a manager after another long wait he undertook to get Marius, Sheena or Annette to call me back. Needless to say I have waited more than 2 hours and no-one has called. I do understand that they are busy with the Festive Season, but surely no firm can afford to be so inefficient! I have been a cash customer for many years and will take my custom elsewhere