Unhappy with service delivery from Master Care

I am registered with an insurance company who does repairs to electrical appliances (Master Care) Cell ***<br> <br> On 2nd September I contacted them and told them two of my glass top plates are faulty. They sent out a guy to repair it, but while checking the switches he realized one of the new switches was faulty. He left and told me he would return the 14 September. He did not pitch at all.<br> <br> I phoned the manager (Clive) the 17 September and he promised me that they would replace the switch and the faulty plate within three days.<br> <br> By 28 September they did not come out and I phoned Clive again who told me that he who investigate and get back to me ,until this moment I haven't heard or seen them. Could you kindly investigate.<br> <br> Many Thanks