Sasol k101 midrand employees damaged my fuel cap,refused with his managers contact details,but insult me

Last night a petrol attended without a name tag damaged my petrol cap,after pouring petrol on my car with the amount of R250,I asked to talk to his manager or arrange to fix it so that it can open again,he refused and started insulting me,he call security guard of axon security,whom I explain to them what happen,they asked him to apologies to me,he refused and insist that,I should pay for R250 for petrol and go,I explain to him. That I stay far,I can't come back to lay a complain because,firstly I have to find someone to open a cap,I spent 1-2 hours trying to solve an issue,I left my details and left,today I received threat calls,and told to send money to a capitec account,I told them that,I won't send money to a personal account,I will firstly lodge my complain,and later I will send money only on a Sasol garage account number.