I'm the victim yet I have to do the most

Brolink is not my insurer but the person who smashed her vehicle into mine. The person who smashed into me was so kind and we exchanged details. I thought this was going to be an open and shut case. Her broker requested 2 quotes and some paperwork which I supp****. Brolink has now requested no less than 8 other pieces of evidence that I was the victim yet their client openly admits she's at fault with eyewitnesses. They requesting a full page story I have to write as to my version of what happened along with pictures I'm sure their client supp****. I'm the victim, why do I feel I have to do more than anyone. Being self employed this is extremely inconvenient and I feel they want to do anything not to pay fory vehicle repair that I use for my business.