Terrible service and bad attitude

The way I have been pestered by this @Home TFG accounts people has been ridiculous! When i opened this account there were so many errors and to sort this matter out nothing was done but now I am being pestered after hours and early mornings about my account! I have a debitorder in place and yet it is not being debited from my account as it should and this is ridiculous when they have the dates of when the account should be drbited! Payment of R400 must be paid today on your @home acc *** to avoid further action or call ***. And this is ridiculous that I should be threatened like this!