the reason no one wants to use oneBip is because they have really stupid taxes/charges on transactions. There IS a way to transfer onebip funds to someone else, but there's no point because the fees are too great.
The fees vary, depending on where you are from. For me, it's a $7.42-$12.45 charge on a transaction of about $17. That's pretty crazy, because at worst, I'm getting $5.
I saw that you live in portugal, so here's what it's telling me...
If you need to send someone payment of $5, you need to send $13.16 through oneBip because there is a fee anywhere from $7.51 - $8.16. So at worst you are getting $5 and at best you are getting $5.65 out of it.
To me that's not worth it.