Keep on getting cut off

About a month I took out a loan, I was informed by asking that I can request a lower interest rate if possible ones the loan is paid out. Since then I have tried to do this request. Every time I call and select the department and approving my information I get cut off. They even called afterword twice regarding the loan, when I do the request with person, they state its not there department and transfer me but the same, I get cut off. The second time they said someone will call, but nobody did. I tried again today and same story.