Very dissapointed my account is paid up and closed but woolworths still sending debt collectors to call me regarding this account.

It is very unproffesional and *********** my strore account was paid up in August 2017 through MBD and I received a paid up letter. I am no longer utilising this account as it was closed.Woolworths is sending my information to external debt collector urgency to call me regarding my account. I have fowarded paid up letter more than once but I am still recieving annoying calls.Woolworths has failed to update my details / profile in their system route cause of this is a failure between MBD and Woolworths and It is non of my business as this might affect my credit record. They must update my profile and remove my details from the data they are sending to their urgencies!!!!!!