Appalling service by homechoice

I am beyond angry and disappointed at a poor service i received form Homechoice. i have bought a cake mixing machine last year and never skiped any payment in the period of 6 months in total it was R5400,00 but only got to use it the cake mixer 4 times in a period of 2 months and started making grinding sound. and called home choice and i was directed to send back the cake mixer to the following address: Homechoice PTY LTD 78 Main rd wynberg 7800 Capetown. i was promised that it will take 6 weeks to get fixed. i did as i was told on the 20 October 2018 and mailed the proof and they acknowledged the proof but still claim they haven't received the cake mixer . I've been calling almost every week and dealing with their mostly very rude call center agents. promising to do follow-ups and call me back of which they dont!. my last call on the 25th of January i was told the machine was still at the Wynberg Capetown post office. again i did as i was told and went to the post office where i sent the machine from and they called Wynberg post office and proof was sent to Kaalfontein branch that the cake-mixer was received on the 29th of October 2018 and Homechoice was notified immediately and contacted to collect the parcel several times and to date it still haven't collected it and almost 4 Months now with this back and forth. So must i now travel from Johannesburg to Capetown to collect the machine from the post office to home choice? and the sad thing is even if they send a new machine, should it be faulty i wont be able to send it back as the will claim that the machine is out of guarantee. whilst they wasted 4 months with this back and forth. can someone please advice me as i cannot afford a an attorney to fight for my rights as a consumer who has had a appalling service by Homechoice. My rights as a consumer have been grossly violated and i need someone to account for all this inconvenience caused.