Pathetic after sale service

Good day,

Please advise me what is should do? I am so disappointed in defy’s after sale service! All of our appliances in my house and my parents house is defy! We buy defy pay the more expensive price as we think its better quality! This is not the second time my parent gas stove is broken! Seeing that they paid just over R10 000 for the stove it should last a bit longer! On the 10th of Jan i phoned the call center to log a call for technician to to come have a look at what is wrong with the oven. The call center advises me between 2-3 working days on the 18th only the technician calls my father he then came on the 19th he checked the oven and told my dad he now needa to gon to his house and check what his stoves part of the oven looks like to see what is wrong with ours!! What sort of technicians is working for defy??!! He then tells my dad he will come back on monday 22nd Jan to check. On the 24 the tech phoned my dad to say he is currently to busy with “month end” and dont know when he will be able to come and check what the fault is. So after almost a month of just excuses and barely even communicating with the client they are still not even sure what is wrong with the oven! My parents have been without a oven for almost a month now deu to the absolute pathetic service from Defy! Not only does defy products cost you a fortune but then its cost you a fortune to get it fix although the stove is not even 3 years old yet! We will definitley never buy any defy product again!