1. Access numbers. Toll free.
(FAQ/Phone cards FAQ)

... be, however, a surcharge for using toll free access number in case the phone card you use also offers a local access.  Most of the time the surcharge is very small; you still get a very low per minute ...

2. Connection fee. No connections fee on most cards.
(FAQ/Phone cards FAQ)

... Minutes phone card. A connection fee is charged only once per call. In case of the Lucky Minutes it is 18 cents if a call lasts more than a minute.  Other phone cards have no connection fees whatsoever. ...