Who Do I Contact if I Have a Question about My Summit Broadband Business Services Bill? For questions about billing, please contact Summit Broadband Billing. Central Florida: 407.996.5500 Southwest Florida: 239.444.0049 Related articles Where Can I Find the Holiday Yule Log on TV? What is the Mailing Address for My Summit Broadband Business Services Bill? Who do I contact if I have a problem with my service?