Original cards had US$2.00 worth of calls
Later changed to US$1.81 worth of calls plus VAT
Original cards had US$5.00 worth of calls
Later changed to US$4.54 worth of calls plus VAT
Original cards had US$10.00 worth of calls
977 & 999 were changed from the original reverse by adding a barcode
Later changed to US$9.09 worth of calls plus VAT
BACK TO CARDS WITH REVERSE VARIATIONS
