Discovery Cars/ Kennings/ Green Motion PE- Beware!

I'm not really sure if it's discovery cars (my contract was from that company); Kennings Truck and Hire PE (their displays had that on them) or Green Motion (Business cars, stickers and online Ad. I'm sure you can understand my concern when I got to the airport and didn't find an office. When I called the number, some guy frOm somewhere popped around with the car (I will include names on the follow-up to this review). They apparently don't have offices at the airport even though they advertise that they do. They also wanted me to sign a blank contract out of my trust for them. Unfortunate for them, I'm South African and particularly untrusting so I refused to sign. They allowed me to leave with the car but swiped for an sizeable deposit as security. Upon returning the car, they claimed that they could not process the deposit reversal. As I was clearly upset, the 'guy' casually told me (I'm convinced it was out of spite as I was very vocal) that the reversal will take up to 30 days. To them, this is normal apparently. He then, WITHOUT MY CONCENT, withdrew 1 cent from the account and when I asked why, he said it would help speed up the process. the deposit has been held and pending since the 22nd December 2022. I have reported the incident to my bank, however they don't seem concerned as I've heard nothing from FNB as well. I wonder what happens to all the 1 cent withdrawals they take from each client and get away with it? Word of advice, please don't sign anything in a parking lot and definitely don't hand your bank card over to anyone even if their in clean uniform! And look for any other car rental besides the three names as listed in PE. I've used 3 of the ones offered at the airport (with actual offices) Including First, Avis and Budget. Absolutely no complaints there. Good luck and definitely visit Tsitsikamma (the whole experience) if you go down to the Eastern Cape.