Can I ever get service without having to complian.

Sometime in January my geyser switch was tripping,I called home assist and they send out an electrician,the electrician confirmed that it was a plumbing issue and Miway send out a plumber who said the geyser element need to be replaced and the amount will be R 750, I paid the money and I believed that the element has been replaced.I now have the same problem,geyser switch tripping,I call home assist and specifically mention that it is unacceptable for an element to already be broken in about six weeks and requested that they send out the same plumber whom I paid,I again inform them I forgot my phone at home I must be contacted on my work number,What does Miway do,they send out a new plumber ,they call my mobile phone after I specifically asked to be called at work and for a re-call.<br> I refuse to have the new plumber be my responsibility and I was assured I will be called this morning to sort this out and I want the previous plumber to expalin himself as apparently the element in my geyser is not new(as per the plumbers of yesterday) I cant ever get home assisstance without having to complain about being ********** , not getting proper service and feedback/call backs as promised.