Optimum  -  sign in promotional bonus

when I signed for service with optimum (TV, internet and phone ) I was offered promotional $ 100.00 after 90 days of service. I never delayed or miss any signal payments and there is no reason for optimum not to send me promotional $ 100.00 (even so I am not 100% satisfied optimum TV service). Please, let me know what the reason that optimum breaking promotional promise. For contact: Semyon Valshtein, [protected], [protected]@verizon.net