Beares Mall Of tembisa

I bought microwave last year may from Beares Mall Of tembisa, this year march the microwave started to overheat then stopped working completely. I called them to inform them about the microwave they said I must bring it to the store I told them I can't carry 60litre microwave plus m paying for insurance which also includes transportation they didn't come my husband took it to the store after a month I called to ask for feedback they said the microwave is still in store they do to have a car to take it to the technician, I had to call head office they brought my microwave after a week so now the microwave started again same thing happened I had to take it to store myself. I went to the store after a week to check they said the microwave is still in store and the manager Thabo said he wasn't aware of my complain I then explained to him the problem of the microwave he said the microwave is dangerous to my family it could burn the house and I have insurance that covers for me to get a new microwave. he is going to give me the new microwave on Monday then on Wednesday I called he said they are coming late. After a week I called again he said they fixed the microwave I told him I want a new microwave not the old as he promised is been 3 weeks and I haven't heard a thing from them.