Major delay on paying my deposit back due to no funds within the company.

Ok, so I know I have reviewed this same company before but now this is rediculous. I rent a car for a weekend Friday to Monday, returned the vehicle Monday morning early and was told that my deposit will be paid back to me no later than Friday morning. Friday morning came, no money in my account. Contacted the guy helping me with the rental and he tells me the money will be cleared by the morning. Lunch time came no payment, no response from the guy again till Monday morning. Whole week gone, Monday morning he tells me he told them to laod my Payment that Friday and will get back to me, he then tells me that payment was made ill recieve it that day, never heard from him till Tuesday. Tuesday morning contacted the guy, he says they told him payment was made and that it will clear. I then requested for proof of payment and never received it, calls no answered adn messages not rep**** to. Wednesday morning now suffering with no food in my house due to no funds, I contact them and threaten to expose them. The guy then tells me they have now asked him for my bank details. So that now confirms that they had been lieing to me the whole time giving me the run around, it is now Thursday and still no payment. First they tell me 3 to 5 working days then it's 10 working days but on the actual contract it states absolutely nothing about waiting period for the deposit. I am now extremely frustrated as my kids have no food, I can't attend a funeral as I have no money for fuel and its all because of them..... I'm so sorry, but if I don't get my money today then I will no longer support the company and I'll spread this incident to every single social media platform in south Africa even if I have to try pay I will. You can't treat your customers like this, BAD BUSINESS ETHICS.