As somebody who has worked in publishing (admittedly consumer as well as business to business magazines) I will always be wary of companies like Novum. Legit publishers don't ask for money from you to publish your work. It doesn't work like that. I can never recall somebody paying a magazine to publish anything, unless it was an ad. The legitimate half way houses which take your money and help you self publish you work advertise themselves as such - they call themselves "author services" companies. They don't hide behind the mask of a legit publisher, nor do they promise you the moon on a stick. Personally, I think it would be a much better investment to ring fence the money you'd have to pay Novum and put that towards publishing on Amazon. Your money will go much further.