unprofessional arrogant manager

On Sunday 1 March 2015, I returned my FOURTH REPLACEMENT Microwave oven to Game. Fortunately, the microwaves stopped working before the guarantee date had expired. At this stage I was irate and frustrated because every time I was forced to return the item to the store it was done on my time and at my expense. When I explained to the manager that my frustration was largely due to the fact that this was the FOURTH microwave I was returning to the store. He was arrogant and nonchalant emphasising the point that all other microwaves were not in question. There policy was to send the microwave in for repairs and that is how far he could assist in this regard. My attempt to explain that given my track record and the experience I had with Game I had no interest in getting the product back but that I would prefer a refund. He walked away and said that it was not going to happen. Is this the policy of all Game stores to treat their customers with disdain and arrogance or have I had a bad experience with Devon. Am I the customer suppose to foot the bill for inferior quality products by driving up and down to exchange goods.TREATMENT WAS UNACCEPTABLE AND UNPROFESSIONAL.