info for Intetnational Medical insurance ?

Hi everyone,

I am still searching for an International Health Insurance for my D7 Visa application and I cant find reasonnable Quote. 

I went to Allianz.pt , the cost per month is 600 €, creazy 

Is any body has previous experience with a brokercalled  C1 ? They gave me a Quote , 159 € per month, but I am not sure uf tjis company is trusfull.

Please any i fo or advice

Michele