Las Vegas Review Journal – Prepaid debit cards — tied to a casino customer’s rewards account — have been approved for wagering on Nevada slot machines following changes in state gaming regulations. The Nevada Gaming Commission voted 4-0 Thursday — Chairman Pete Bernhard was absent — to approve the amendments, which were backed by several gaming companies and recommended by Sightline Payments, a Las Vegas-based payment processing business. Attorney Dennis Neilander, representing Sightline, told the Gaming Commission the changes address concerns raised by the Nevada Council on Problem Gambling, which has long fought the use of traditional credit cards on…