There's no problem, it's possible. I asked the question and all you need is a different email address. I have sponsored my mother and my girlfriend and both of them play on my computer and sometimes I offer them credits so the 3 accounts are funded by the same C.B.
Can we sponsor someone who uses: our PC (from time to time) But who doesn't live at our address (home) This can allow someone to test the game in person and choose whether to continue... from home, or elsewhere...