Very very dissapointed as KP say in ads that they promise to leave me in a better position after a claim

Very very dissapointed as KP say in ads that they promise to leave me in a better position after a claim. Now that I claim because the fridge (that is needed in house where 4 people are staying) , is not keeping my items cold.. (note I only have one fridge), they dont pay my claim or cover due to 'wear and tear'. So why do we have insurance if this is how they operate?...why cant they fix the sensor of my fridge that they say is broken then my fridge will be working again? Is this not covered under home contents? Due to the new 'power surge' in my policy they moved it to 'wear and tear'. I am very unhappy and dissapointed in such a big insurance company. If there was an option of no stars I would rate 0 this time. Please note I am insured under KP Insurance for very long time and this small claim should have made me feel like the king. But now I feel like my money every month can maybe be contributed towards another Insurer that is for sure looking after clients. I am so dissapointed!