Bad after sales service

I went to Hirsch store in Springfield Durban on 2020/03/08 and purchased a Samsung microwave Kameron was the sales person, when we busy doing payment I was informed that there is no stock I was then informed that I can pay now because new stock wil be un store on the 2020/03/10 and they wil phone me to collect. On 2020/03/11 I received no call. I then phoned them and was told by Kameron that no stock has arrived but will be there by 2020/03/13 and he will cal me. 0 On 2020/03/15 after not received anny calls I went back to Hirsch Springfield, Kameron was not there and I was told no stock. Then I was told I can take another microwave at R500 more then what I paid, I said it is not acceptable and reminded them of what the Consumer act is. Only then was I given another at the same price. Now why was I not contacted when no stock arrived and why did I have to follow up and why did I have to fight to get my microwave. It seems like all the salesman wanted was a sale and then not bother to follow up as long as he had the sale. VERRY bad service