The worst experience dragging for a month

Bought a Bennett Read airfryer and registered for an extended warranty. Thank goodness for that as the airfryer started causing issues less than a year of having it. Took it to Builders November 2024. Then received it back after R600 worth of replacement work done under warranty. May this year same thing happened. Told them they need to make a plan as it is exactly the same issue as November. They ignored the request to take this further and not even 3 months later in August same thing. Spent almost an hour to try and have them get hold of the rep and then finally the Tuesday they confirmed the rep will come in that Wednesday. Rep said it should go to the workshop to assess and I told them to then proceed. They waited until I arrived to collect the documents for checking it in that Friday before booking it in and next collection was the following Wednesday. I made it clear that I either want a new airfryer with another extended warranty considering this product has made us go back 3 times since having it and on top of that less than 3 months apart or Builders should refund me. Now after 2 more weeks of waiting, they will give me a new airfryer but 3 months warranty due to us having thebother for 2 years. The fact thar they are not willing to cover longer shows that they have no faith in their product. Then I am informed the new one will be specifically shipped from the rep. That to me is suspicious as they might just have refurbished a product and then I sit with the exact same issues in 3 months once the warranty expires. I feel it is Builders that is selling this product and they should either be responsible for refunding my money or insisting on an extended warranty. Considering that the cost of fixing the issue on the machine in the end is basically the cost of the actual machine. Terrible service. Will never again purchase any machinery from Builders.