Cancelled services yet still get invoiced for an outstanding amount and no one is helping at your accounts department

CONSISTENT HARRASSMENT BY TELKOM

Good Day,

I have been receiving an account statement from Telkom regarding an outstanding amount for a landline dial up internet service that was cancelled in 2012, I have contacted your account services numerous times to inform them that this was cancelled and nothing was done, I still receive a letter for an outstanding amount, Your help in correcting this matter will be appreciated, As this is an ongoing nuisance for something so trivial.

Account number of the invoice: ********** 58-3

Please sort out!!!!