Has anyone here heard of Premium Yields?

My dad said he put 250 euro into it last week, and now his money has doubled. To me, that sounded way too good to be true. I looked them up on trustpilot and all the positive reviews were from accounts that had only reviewed that company, nothing else, and repeated buzzwords like MT5 platform and trading interface. Really weird.

I’d hate for him to lose his money if its a scam, he’s not going to be able to work for long at this point, and is still paying a mortgage and two car loans. A loss of 250 euro would mess our financial situation up.

Thanks