If only they had 4G calling and WiFi calling then I would join
referrals aren't allowed on this site .. and this isn't a deal as it's their standard pricing
I was trying to post my referral link but the website says no can do as I am new. No free month for me. BTW, as the OP already mentioned, apparently you get your money back as credit for unused data each month. Also, they do reasonable international call rates for some countries too. Slightly more expensive per minute than Vectone but there is no connection charge per call, so it might work out cheaper.