Frustrated Customer

My washing machine broke down I phoned LG to so they could fix it. The call centre gave me contact details for IRS Electronics as they were the nearest Agent to my area. IRS Electronics told me I needed to pay R695 for them to come and check what the problem was with my machine. I paid and a Technician was sent. IRS Electronics sent me an sms stating that I needed to pay R570 extra so they could buy the part that was causing my machine not to work. I paid it send them confirmation of payment. A technician contacted me yesterday confirming that he will be home to fix the machine. He phoned me after fitting the part to tell me it was the gearbox that was the problem. I am wondering who broke the gearbox, when the same Technician came in the 1st time and quoted me on R1265 for repairs. I am frustrated. My REF NO. is WH01/47.