Is it ok to play over vpn with different hardware setup

Hello TechSupport,

The reason behind my question is: i've recently has been accused into breaching EULA(giving my account to some other person(IP and routing change i suppose)) for some other MMOgame, while i'm not.

I have more than 3 PC's in my possesion, and i play occasionally on all of those (for ex. Windows-based desktop/iMac with bootcamp installed/power-house laptop) Time to time im travel abroad or my network setting may vary due im attending some internet cafes network which can locate myself as being in 3 different countries over an hour.

Is it ok to play on a different hardware from all "over the world" not giving any1 access to my account details? Is there a way to let you know im ok and is there a way to prove it to you?
Or you dont mind me playing that way, cos i didnt find any related info in EULA for FFXIV