Can I use my Prepaid Visa MyNetCard instantly after I purchase it?

The Prepaid Visa MyNetCard can be used instantly if it is purchased from Carrefour, Al Fardan Exchange, and Geant. If the Prepaid Visa MyNetCard is purchased from ENOC, EPPCO, Zoom, and Al Ghurair Exchange please allow up to 36 hours from purchase for funds to be credited to your card.