UB is definitely benefiting from the redirected links since it appears they own depositbonus.com. Plus, if the links are being redirected to depositbonus.com, they could just as easily have been redirected to UB.com so affiliates would not have been ripped off for their referrals.
Whether the email gave ample notice or not, this is still pilfering players for the sake of it - not out of necessity.
Compare this whois record to the one above...
Domain name: ub.com
Registered: 1986-07-10
Expires: 2014-07-09
Registrar: Com Laude
Com Laude is a business name of Nom IQ Ltd, a UK based company.
Registrant Contact:
Domain Manager
Whois Privacy - Com Laude
116 Long Acre
London WC2E 9SU
United Kingdom
Phone: +44.2078360070
Fax: +44.8700118187
Email:
Admin Contact:
Domain Manager
Whois Privacy - Com Laude
116 Long Acre
London WC2E 9SU
United Kingdom
Phone: +44.2078360070
Fax: +44.8700118187
Email:
Technical Contact:
Technical Manager
Com Laude
116 Long Acre
London WC2E 9SU
London
United Kingdom
Phone: +44.2078360070
Fax: +44.8700118187
Email:
Nameservers:
udns1.ultradns.net
udns2.ultradns.net