How Can Dyson Fix This Terrible Customer Experience?

It took a month for the service to inspect and send my broken Dyson vacuum cleaner to Dyson headquarters. Following the choice to recycle the goods, we were notified that the new vacuum we had chosen was out of stock. We received emails twice claiming that the product was back in stock, but when we contacted 15 minutes later, we were told it was out of stock again. On the third email, we received a message indicating that we could purchase it via a payment link. Unfortunately, the payment connection did not work. The second payment link also failed. Meanwhile, the minutes-long phone delays and talks are another issue entirely. It is a really bad, tiresome, and disappointing service and experience.