Hello,I am a off shore fishing man,I download and installed premium last month,almost 1 month use the software to track the waves for safety,but I find it not accurate at all.Sometime 1 hour forecast shows waves hight 0.2 swell 0.1 m,but it is huge diffierent when we on the ocean,I estimate it has a height of at least 0.5 meters. It is very dangrous for us. So,I looking for a refund！！！ And I suggest that sea wave data is related to life safety, please provide accurate data as much as possible.