4 months and nothing!

After 4 months of me calling H/O like I was told I had to, I still have no result and they have the nerve to send me to the branch who said o had to deal with H/O. Now the branch people check out my query and they not only change the few things H/O managed to fix but add extra cost to my monthly acc without any communication at all. My contract request wasn't loaded on my brand new contract and I have to keep calling and now pay more than everyone else for the same thing!! I call and no one is bothered that they're charging me more or made mistakes and now tell me I can't get what I asked for 4 months ago despite my repeated requests for the entire 4 months