Shady business practice. I scanned the QR to pay at the Waikiki Post Office, got a $1 pending charge from MDSS.NET although I selected $15.71 for 2-hours, came back to find a man from their tow truck crew leaning on my car hood on his phone, another on front of my car looking inside, and an unpaid parking ticket stating I owe $49.95 issued minutes after I left the parking lot. I filed a dispute online, didn't get a confirmation, so emailed local business manager Sandi Makaiau. Didn't hear back until 2 days later from National confirming my dispute and asking for time to review my dispute. Two days later my credit card that was charged $49.95. Hmm.. that means (1) they are trapping people by issuing tickets minutes after leaving the parking lot, knowing their QR pends your credit card and (2) charging you a higher charge because "you didn't pay". Shady vultures. Don't ever use their parking services. read more