UNHAPPY CLIENT WITH NOKIA 3

on the 16th of Feb I bought a Nokia 3 in Randburg square Edgars after a week or so my phone did not want to charge it just went off . I took the phone back to edgars . I was told that the phone will be taken t repairs (insurance). After a month or two I phoned them to get the feedback . I was told that the insurance declined the claim because its not accidental damage. I went back to Edgars to find out what to do because I cannot be paying something I do not have. They told me that the phone will be taken to Edcon or Nokia since it is not accidental damage like my phone just went off it did not fall nothing. Today they calling me to collect my phone its back from the repairs but it is not fixed because it is ''liqour damage" as the say.

What do I do in this situation ?? since MARCH I DO NOT HAVE A PHONE