Threatend verbally abussed and treated badly by...

I was at PICK N PAY on the 24th February. i looked for shade to park my Motor Bike as the seat has minor cracks in from the sun. I parked my bike in the shade under the roof at the entrance of the court.There was no boards to say i cant park or any clamping zone.I entered and returned from Pick N Pay and saw my motor bike was clamped. I asked the security to release my bike as there is nowhere it says i cant park , he said no and i must go to management. i slipped the clamp off as it was meant for a car and not a bike the security officer grabbed my key out of the ignition and said he want R1200.00 to get my keys back. I the said to him i am going to management so we went , on the way the security insulted me and i felt em barest in public we got to management office and i spoke to Marius and admitted to part blame as there is no shade at the centre to park my bike, he said that is not his problem if my bike cant handle the son. i asked for him to phone my work to say im late he said NO, i asked him to call my wife and again he declined this. This is not professional management ? And when i told him his security has done me bad he said that is the best he has.... i really wonder.