Defy stove

I have bought a Defy glass top stove 6. 1/2 years ago. The stove is not working, it requires a new pc board. Defy Technician comes home access the stove tells me defy will contact me. defy Service Center contacts be today telling me that the part has been discontinued. I asked what should i do as and was told to buy a new stove. We as consumers by Defy brand as parts are available in South Africa, so to be told a part has been discontinued with no solution is terrible customer service. Defy should offer me a new stove at their cost price.