DST Global Solutions Billing product support Support Home HiAffinity CUSTIMA DST Global Solutions Billing News 2009 Contact support DST Global Solutions Billing support can be contacted through the following channels: eMail: Billing.Support@DSTGlobalSolutions.com Telephone: +44 (0)208 339 5510 Fax: +44 (0)208 390 7000 Post: DST House, St. Mark’s Hill, Surbiton, Surrey. KT6 4QD. United Kingdom. How to find us Support business hours are: Monday - Friday 9am - 5:30pm (excluding UK public holidays) DST Global Solutions Billing 2009.