very poor service

I've been phoning NEDBANK homeloans devision for a couple of days now just to kindly get a 90 day notice settlement letter for my homeloan. but they just keep transferring my calls the 1 to another and after 3 days try no success. CAN SOMEONE IN NEDBANK WORKING WITH THIS, please just send me the damn letter that's all!!!! thanks, you can reach me on email: ***