unsatisfying service from Auto & General

My car is insured including the top up of tyres,ream and dents with Auto & general, my tyre was pierced by a sharp object whn I was driving home from work,in the N12 which I suspect it was due to the construction that's been going on in SA roads,i claimed but all was in vain,i was asked to send thread measurements, i dd twice bt I'm still waiting, I bought a new tyre as it was an emergency after a week waiting on my insurance,U later emailed my insurance a proof of purchase for the new tyre as I called & they requested I do so,in order to b refunded, I'm very disappointed. I was convinced by their sweet talking consultant to add this policy, bt whn I call in for a claim the process is being prolonged, I call and hold for a long tym,no one comes back with progress on my claim,if I don't call they will not call back. It's so easy for them to deduct my money on monthly basis bt now it's so hard to replace one tyre,how much more would it b when I would claim for more thn 1 tyre? It means I will end up using public transport.