Disagree with Symantec Security Response resolution

Hello!

There are couple of SSR tickets -- #43339145, #43343152 and #43343325. They all have resolution " is not malicious itself, but may be an artifact of a threat", but all files in those tickets are malicious. How can I try to force Symantec to add detection for these files, if I'm on trial license for SEP 15 and I have no license number to put for Support Center request?

Thanks for advice!