Trapped in a parking lot because of not having cash

Good Day

i am stressed and devastated at Park Station, the ticket machines takes only cash. on my account i have R33.00 parking is only R15.00 in a normal machine that takes cards, i will have paid but unfortunately because the machine does not take cards, i just have to be here up until. i cant walk here in joburg is not safe. i am trying to call Servest for help they are not helping me to get out of the parking lot.

my you please assist.

regards Khashane