Poor service

I ordered a Digital Slow cooker. They send me a manual one. On the 6 October I phoned their customer services and a lady by the name of Lizelle was assisting me. It sounded like they were having a party in the office as they kept on calling her name and then she put me on hold. Happened twice. I asked her if the time is inconvenient and she asked if she can call me back to which I reply I would like my complaint to be settled but to no avail. She kept on partying. On Monday I phone again and spoke to Nathi. Very helpful and he informed me they do not have stock of the digital and send a replacement. I explain I already have a manual and ordered the digital slow cooker for a reason and they should inform their clients if they going to send replacements. I returned the slow cooker to them and again order the digital Slowcooker. Guess what. Received the manual again today. Now I need to call them again, Repack and return the manual one again on my costs. The service is really very poor and I've been a client for such a long time.