If it is customer support issue, following is customer support contact:
https://support.bandainamcoent.com/

English:
SOULCALIBUR VI opinion form
https://survey.bn-ent.net/Q/en/000000scviopinion/enq1/

Japanese:
PlayStation®4/Xbox One/STEAM®『ソウルキャリバーVI』ご要望受付ページ
https://survey.bn-ent.net/Q/ja/000000scviopinion2/enq1/


Note:
There's preview page shows up after clicking "Confirm" button.
On second page you need to click "Register" button.
So make sure your form is submitted.

Link was from official Twitter post.
They explained this form post goes to development team directly.

Nov 18, 2019
English
https://twitter.com/soulcalibur/status/1196363026368057344

Japanese
https://twitter.com/soulcalibur/status/1196362669772570625

They mentioned that SNS monitoring is not 100% and preferred use official form.

Official account
https://twitter.com/soulcalibur

Bandai Namco Esports
https://twitter.com/BNEesports

Motohiro Okubo, Producer of TEKKEN 7 and SOULCALIBUR 6 (moved to other company)
https://twitter.com/achilles_Okubo

マステル高橋, Director of SOULCALIBUR 6
https://twitter.com/masuooyama

Hideo Yoshie, Art director of SOULCALIBUR 6
https://twitter.com/hidero4ca

中鶴 潤一/Junichi Nakatsuru, AudioDirector & MusicComposer of SOULCALIBUR Series
https://twitter.com/J1_SOUND

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2198661886
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2192326393
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2186983802
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2198639564
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2289807551
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2291382184