How do i contact 1st securities mortgage? You are also expressly agree to have 1st Securities Mortgage and our lending partners contact you about your inquiry by text message or phone to the home or cellular telephone number you provide, even if that number is on a corporate, state, or national Do Not Call Registry.What is the phone number for hsbc mortgage customer service? HSBC Premier Banking: 888.662.4722. HSBC Advance: 866.584.4722. Business Banking: 833.722.4722. Mortgage Customer Service: 855.527.8400. Premier Mortgage Customer Service: 855.806.4660. Jade Mortgage Customer Service: 855.806.4661. Private Bank Mortgage Customer Service: 855.806.4664.How do i contact freedom mortgage customer care? How to contact Freedom Mortgage Customer Care: (855) 690-5900 Customer Care Fax: (866) 505-0948 Loss Mitigation Fax: (866) 505-0949