They have completely screwed everything up and tried to up my loan payments by $500/month on my IBR plan. To make a long story short, Citi sent me an IBR renewal form a couple days before selling my loans to SM. Shortly after I received a form from SM to renew my IBR with them and was quite silly to think they would apply it to ALL my Stafford loans.
It's been two months and they still can't figure out the problem. The CSRs don't give half a crap and simply expect me to pay the extra $500 on my teeny salary without understanding the problem. Half my loans are on the right plan, the other half are messed up. The last CSR I spoke to had a VERY heavy Irish accent and I could hardly understand her at all. They made me take a month of forbearance which is limited in total time available to sort out THEIR error. It's been two weeks and it's still not straightened out. I have no clue what the magic words are to get this fixed. I want to pull my hair out. They even insisted that the day they RECEIVED my documents was actually the day they were mailed to me.
UPDATE: They seem to have fixed the problem, but their website is so awful it's hard to be sure. I can't even figure out how to view my letters from them without going through the links in their emails. I supposed we'll see once I get my new statement.