FL LOTTERY ISSUE!! Double check those tickets!!

So... the day before yesterday my husband went to our local corner store/gas station and bought a couple of scratch-off lottery tickets. One of those was a $3 "Match & Win" ticket.

See here for an image of this type of ticket and the rules.
[link to flalottery.com]

"How To Play
Match all "RED NUMBERS" in a row with YOUR RED NUMBERS and win that row's RED PRIZE. Match all "BLACK NUMBERS" in a row with YOUR BLACK NUMBERS and win that row's BLACK PRIZE. Match all 3 numbers in a column with YOUR RED or BLACK NUMBERS and win that column's prize."

So he brings the scratch-off home and plays it. It's a winner!
He got all the red numbers across the top row for a prize of $10.
He also got all the red numbers across the second row for an additional prize of $10.
He also got all 3 numbers in the last column (red) for an additional $30 prize.

This is a payout total of $50.00

My husband did what everyone does when they get a winning ticket, he double and triple checked it. Then yesterday he took it to another store/gas station to redeem the $50.

The cashier scanned the barcode and handed my husband $30. My husband objected and told the cashier that it was clearly a $50 winner and pointed it out on the ticket. The two of them poured over the ticket for several minutes and determined that it was in fact a $50 winner. No question about it.

The ticket clearly states that you can win up to 14 times on one ticket so there is no chance that winning on a column can cancel out winning on a row.

So, at this point it would seem that the issue is with the barcode being programed wrong or something. But... if you scratch off the entire playing field you will often find a three letter code that coincides with the dollar amount that that ticket is worth. On my husband's Match & Win ticket, there were three letters indicating a $30 payout. I think it was THY or THR or similar.

For example, the previous night I won $10 on a ticket my husband bought, and scratching off the entire playing field revealed the letters T E N.

Anyway... the cashier said he could only pay out the amount that comes up when he scans it and types in the control number on the bottom. It comes up as $30 so that's all he can payout despite the fact that the ticket is clearly a $50 winner. My husband asked for the ticket back so that he could take the issue up with the FL Lottery but the guy said he couldn't give him the ticket back, that his store requires them to hang onto all the winning tickets they pay out on. Since he had already scanned it and the drawer had opened, the transaction could not be canceled and the ticket would show up in the lottery system and paid.

The cashier told my husband that he would talk with his manager about it and to come back tomorrow. What can we do without the ticket? What should we do when it comes to alerting the Lottery and/or the public about this type of error?

Is this a one time glitch or could there be tons of these faulty tickets out there? Double check your tickets and the payout.