Inaccurate and not a good after sales service

I bought the Oregon BAR218HG directly and not from Amazon. I'm not happy with the product or customer service. The weather station will not give an accurate temperature reading. Even in comparison with the sensor on the outside, it is inaccurate. The link must be reconnected my iPhone every time the phone goes to sleep. I returned the first product and I asked for a replacement or refund. Without checking I wanted, they sent me a replacement. Replacement is also incorrect (although slightly less than the original) so I again asked for a refund. This time, I was told that I was beyond the return period of 14 days, even though I asked for a refund the day after receiving the product. They also told me that it is usual for the readings to be innacurate to + / -0.7 degrees. Not a business I will do business with again.