Phone not working in less than six months of reciving it

I have insured a Samsung Galaxy phone with first For women insurance and somewhere around March I made a claim on the phone because it fell and damaged the screen and the phone, I received a new phone from their service provider, a few months later it started having problems of not recognising my sim card, I then took it to Vodacom and they said the problem was with the phone and not my sim and no other sim card was recognised by the phone. after a week it started working again, not Friday the 16th of August 20149 the same thing happened and I went back to Vodacom and they advised its not the sim card that has an issue its my phone.

it has not been 6 months and already the phone is factory fault, honestly first for women has really disappointed me. this matter must be resolved and I hereby request a new phone cause this phone should still be under warranty. I don't not have a phone currently and using a phone that only receives calls and text due to this inconvenience. may you kindly resort back to me urgently with a possible solution.

regards