Mediclaim not approved

My name is Prasenjit Dutta, my mother was admitted on 30/07/17 in a private hospital named ZENITH SUPER SPECIALIST HOSPITAL due to fever named sepsis, I was applied for mediclaim of the mentioned company after the date of admission. My mother has no blood suger and blood pressure at the time of taking health policy. But after 3 month later mother was affected by Low suger and pressure. That’s why my mediclaim request was rejected for the reason only whereas the agent related with IIFCO TOKIO was clearly said about no complication will be happened in future. Please look after the matter and solve the same as this type of fake healthcare companies can’t cheat with helpless people.