*.uguu.se - false positive / whitelist

Uguu.se is a temporary file hosting service that's been online since 2013 and widely used, we don't allow malware and take action to prevent it.

File(s) get served from sub-domains such as:

• a.uguu.se
• d.uguu.se
• f.uguu.se
• h.uguu.se
• g.uguu.se
• etc

Would it be possible to get a wildcard whitelist on *.uguu.se?