Bad Service From Wesbank, Colserve

I have been paying this account for 9 years and no one ever seems to have a proper settlement amount for me and everytime I give an offer to settle the colserve team rejects it and wants more. Please I am being ****** by wesbank at this point and now when I try to settle it reflects the account as fully paid up but the team wont give me the original Natis OR a valid settlement quote as its always being adjust somehow, I am beyond frustrated at this point and dont trust anything. I always have to pay something and no one ever tells me what its for.