How am I supposed to contact Santa Claus!?

My mom is single and whenever i ask about my dad, she says santa gave me to her. so santa must be my dad rite? i wanna meet him now, but wen i write letters to the north pole he never answer! maybe he thinks it would be weird because hes never met me before. i saw once that some girl met santa with a snow man, and i've tried finding a hat like hers, but the snowman ignore me to >:( i know santa has to be my dad, we have the same laugh and everything!