If you want to raise awareness, you should pick an issue thats effecting more players and more than by just 5$. I get how this one incident has somehow effected you personally, but the majority wouldn't care.
The issue is still serious whether its an overcharge of $1 or $1000. Begado needs to stand behind the processor they chose and fix the issue. They are the ones that leave the players out for exposure if they are choosing shady processors. The only issue in this case is begado is already a problem casino to begin with so yes its an serious issue, but unfortunately not much sympathy because of where the OP chose to play. If it was an accredited or reputable casino they would fix the issue without problem and hopefully ditch the processor.