Changing Nearest Airport

Last week I setup a new tracker (Site 6393) and the website keeps on changing the nearest location due to another part of the West, Southwest. It’s currently set to the nearest airport as Window Rock, Arizona when it really needs to be MHR (Mather Airport) which is about 700 miles apart.

How can I change it to the correct location when it doesn’t provide me the option in the website and it continues to automatically changing it?

Use contact on the left in the blue panel, tell them which receiver is wrong, where it really is (locate the place on google maps, right click, select ‘What’s here’ to get the latitude & longitude) and the nearest airport. Someone should fix it.