Just a heads up. I was with Momentum Short-term Insurance (aka Outsurance) until they decided to increase my premium by over a thousand rand due to 2 windscreen replacements in the previous 12 months. Most other insurance companies don't nail you for windscreen replacements. Momentum STI classify glass repairs and replacements under "accident damage" which just just ridiculous.
Same happened to me with Budget.
They increased my premium by R200pm and doubled the excess to R10 000 after only one passenger window replacement!
Switched to Hollard through a broker and paying less with only R2500 excess and insured for higher value.