Poor customer service responsiveness for incorrect delivery of stove

Very unsatisfactory response after delivery of wrong stove ordered. I ordered it online and the wrong stove was delivered a week later. My domestic worker received it and only when I got home that evening and opened the packaging did I find out it was the incorrect model. There was only a generic customer call centre phone number on emails related to my order, with a complicated menu. I left a voice message based on prompts from the customer call centre automated menu the next day (a Friday) as the customer call centre is only open during office hours. I also spoke to an agent to lay a request to remove the incorrect stove and bring the one I ordered on the Monday, Tuesday and Wednesday of the following week with no response. Only after I left a review on hellopeter did I get a response saying it is a busy time for them, but providing 2 different emails as well as a Whatsapp service for registering my complaint. The one email was rep**** to 2 days later saying it was for clothes only and to use the customer service call centre number. The Whatsapp service, to which I sent photographs of the incorrect stove, was never rep**** to. I got an email a week later from the other email address requesting photographic proof, after which the mistake was acknowledged and it was noted that as it was on the weekend the incorrect stove could only be uplifted in the week. Five days later and a follow-up email reminder from my side, and I still have no idea how long I am going to be sitting with a stove that I can't use, waiting for my correct order to be brought. It is now 2 weeks since the incorrect delivery was made and reported. I really think that a correct email address or website for reporting problems instead of a unwieldly and dysfunctional call centre should have been made available to me on confirmation of receiving my online order or the delivery thereof. I appreciate it is a busy time but just communication to say when their mistake can be rectified would help. Disappointed that a major retailer can't do better.