An antenna and higher mount is good if you have marginal connection.
If you are down in a deep valley with no signal, you can't boost a non-existent signal.
I'm wondering if when you asked about a specific unit, they were expecting you to buy it from them. So when you came back with a 3rd party unit...not their problem.
PS: Starlink is completely different from cell coverage. It requires a clear view of the sky. So if camping under dense forest, no it won't work. But if you have a clear view of the sky, should work just about anywhere. Not sure what a certain poster is going on about. If you don't test the system before the warranty period then have problems, a good bit of it's on you.
