Most unprofessional and dugusting non customer service ever recoeved in my life!!!

Myself and my partner purchased a couple of items from Hifi Corp in Promenade valued to almost R10 000 in May 2017 however, 1 month later my Russel Hobbs microwave stopped working correctly and the Mellerwear kettle valu3d at R600 just decided to stop working 3 months later. When we came to the store to advised that the microwave was faulty and the kettle broken and faulty we were told they are not able to replace or refund it as the serial numbers dont match and was even told by a assistant that no one can assist but the manager however, the manager will only be available 2 hours later, we then were advised to leave it at the store and the manager ( Neville) will call us back to assist with the issue. He still hasnt contacted us back to this day and this is now 2 months later we still have no replacement of a R600 kettle we had to go and purchase another kettle at another company yet they have our broken kettle 3 months after purchasing it and no one called assisted or helped us. I woyls like compensation for travelling from where I live to the stor as I wast3d a 2 hours drive petrol with no concern from the store also I want full refund of the R600 kettle and microwave that is faulty as I spent alot of money at the store yet they treated me like a low down customer. I also want a apology from the store manager and compensation for everytime I used more electricty when having to boil water on a stove due to not having a kettle and also no use of my microwave as I was so embarrassed when having ppl over. A matter of urgency would be appreciated. Regards Kaylene