Skylink VS Yota. Customer service

Skylink
...
S: —You live in an uncertain reception zone and you probably won't be catching it. But you can buy and try.
I: —If I will not catch, I can return the money by returning the modem purchased from you?
S: - Of course not.
I: —Thanks, don't.

Yota
...
Y: —You live in an uncertain reception zone and you probably won't be catching it. But you can buy and try.
I: —If I will not catch, I can return the money by returning the modem purchased from you?
Y: Yes, of course. You can test the signal quality within a week and, in case of dissatisfaction, return it with full compensation of money.
Me: —Thanks, wrap two.