Nedbank bad service on homeloan settlement

What an experience. I spoke to few consultants on Thursday (12th of Dec) to get my settlement letter on my homeloan. They all told me how they will email it and Even confirmed my email address. They gave me the settlement amount and said it's valid for seven days.

I waited when I didn't get the letter Friday and called them today,the 14th. This guy is now giving me a different amount and all he can say is sorry and told me something about someone not having done something. So how must I suffer for someone? Me as a client that doesn't even work there?

I am unhappy with the extra amount and sorry does not take the extra amount away.