Replacement of kettle

Super annoyed today. Bought a kettle 3 months ago. The kettle cook, switch off halfway, start cooking again on its own bcse we didn't realise it's still on. Took it back. They cooked water and said it's fine, it's cooking. Why would I be so stupid to drive almost 25 km just to return a kettle that is working, that I use every day. I will never buy any electrical appliances from pick a pay. Never ever had a single days problem with clicks appliances if I had to return it and now I need to cook water on the stove bcse I told them to keep it. Not my best friends I will advise to buy any appliances from pick a pay again.