Appealing Customer service

I bought a microwave in August 2020 on the 26 or 27th and it had a 2 year warranty.on the 29th of October 2021 it stopped working and had a funny smell and I took it back to the store.And I was told that it will be taken back to Defy for them to fix.And the message I received was,Item booked in a t Nu Home 2021/10/29,Ref: JOB J02407,contact Jacqui *** for any queries.I went to Nu Home in December 2021 the microwave wasn't fixed because Defy didn't have parts.I need my microwave to be fixed or my money back,I've been without it for almost 3 months now and I need someone to call me and tell me the way forward.I want my microwave or my money back.Ive been patient enough,now ek is gatvol.