I notice that sometimes offers from softmaker seem to have **hard-coded discount links, for use only by the email receiptient [**if that is the proper term].
In that, no specific discount code is mentioned, yet the link they send their subscribers of their newsletter takes me directly to the discount offer.
[this happened to me a few times with the Abbyy Finereader program, when it was offered in softmaker newsletter emails, several times in 2016 for just $39.95.
There was no obvious "Discount Code" embedded in the link they sent, so it was most likely obfuscated somehow in the sales link.].