After you file

They told me that they weren't informed of my name change by the social security admin since Nov. They same guy also gave me another number for the IRS and told me to call and set up an appointment for a local office. When I called the number, the lady said, Oh you dont need to make an appt. I see the name change right here. However, it will take 6-8 to reprocess this. I feel like I should call back because this is yet again two employees saying two different things. Also, why does it take 6-8 for them to "reprocess" it when it usually takes 2-3 weeks at most for electronic.