Lost all my bundle

I purchased a bundle for a data number 3 gig X 3 everytime i checked the balance ishowed 0.00 i realised that i made a mistake and input the last digit incorrect. I called the call centre the person who was helping me was clearly not interested to help. She said cant help you we dont do refunds. I ask for someone else she said i must call again to get someone else to speak to. I understand i it is my fault that i purchased for a wrong number but as my service provider i thought i woild be assisted. So i lost R600 which i will not be able to get back and you consultant just said buy another bundle yhoooo