i am just wondering if ms. collicould maybe highlight something i might have overlooked or is in publication 915 that would address my problem. guest: great question. as far as the calculation, whenever they say that they have a different calculation than you, did they provide you with their calculation so you could crosscheck their calculation with yours to identify the difference? caller: you are talking mathematically? guest: yes. caller: i have done that, they suggest i get publication 915. i am wondering if there is something in that 915 that would preclude me from using the social security benefits worksheet because the worksheet in the booklet, i followed the instructions and rechecked it. i am just wondering, in that publication 915, if you know anything that might preclude me from using the social security benefits worksheet or something i missed that is in that publication. guest: i do not, right here, specifically to that question, but we would love to be able to assist you. you might want to contact our r