download buy tekken 7 definitive edition

So I followed the link in Official Support section and I have written to Namco Bandai support, they have answered this:

Since there's not much more that I can say or do to be of help with this particular issue, I am going to close this help request.' We have provided all the available information in our message. You can reach TEKKEN 7 support by using the information from the Official Support section here. If you already own the base game and wish to upgrade, please reach out to the publisher's support team for more assistance as they may be able to help you in upgrading the game, if the option is available. However, Steam does not offer any upgrade options. 'I understand you'd like to upgrade your purchase to TEKKEN 7 - Definitive Edition.

I wrote them a third time opening a ticket and they have answered me: I wrote Steam support twice explaining the situation and they refuse me the refund. I got the same problem but there isn't a regular way to solve it. No, you don't own the Definitive Edition for real and you can't buy it anymore if you purchased the base game.

Download buy tekken 7 definitive edition