Please Solve Problem

I have purchased a Washing machine from Rustenburg branch one year ago.The machine had an error and I reported it to Bloemfontein branch as I moved here. They did pic up my machine to repair it and returned it after 4 days not even telling me what was wrong.It came back from them dirty and with an old rotten filter not mine that was in the machine.After it was repaired it was still giving the same error,so I phoned the Regional manager Bloemfontein House and Home to complain again.After one week they send a technician to my house, and he confirmed that error can not be fixed.I phoned Rob the regional manager again and he said to me that they will follow up on the matter.The Manager of Repairs services came to my house to look at machine and also confirmed that error cant be solved.I have 2 e-mail reports from repairs department that confirm they cant fix the machine.So long story short after 3 repair attempts and 2 months with a broken not repairable machine still no results.I insist on a refund or replacement.I will not leave the matter as I have rights as a consumer.There is courts for this.