Reported this issue numerous times but the problem still exists...
I don't get redirected to the secure https:// but to http:// I have to manually add the s, the dev already said they had a weird regional thing before with their SSL certificate.
I'm one of the few who pays attention to such things but I wonder how many people don't and my post on the forum got deleted and I already reported this 4 weeks ago to support.

It's quite severe in my opinion.

Are you sure your computer isn't compromised, maybe check your hosts file and you might have a redirect to some other domain.
Because I've tried 3 different browsers, I manually put in "
www.primedice.com" and each of them redirected to the correct HTTPS.
Normally its easy to tell when you are not on a HTTPS because there is a warning shown near the address that its not secure and most people would notice this.
Go download a Ubuntu live CD, and try and go to primedice from there and see where it takes you. Most likely it will redirect to the HTTPS meaning your OS might have malware or such.