Reward for R2K claim is a 24% increase in premiums

I've been with outsurance for many years. In this time I have cost them one windscreen, which I don't count as being my own fault as it was stones picked up by cars in front of me. <br> <br> The first time I have made a claim was this year. After the cancellation of the outbonus balance, Outsurance was left to pay approximately R2000 on a claim for accident damage where my wife scratched the car on a pillar. This year I get rerate notification of a 24% increase in premiums (standard is 7%). I can only assume this is due to this one claim?<br> <br> Seems to me that outsurance is happy to insure you when nothing goes wrong, but when it does, they are sure to recover it in future premium increases over and above the actual premium.