Ackermans harrassment

Ackermans has proceeded to *****ulently update a contact number for one of their clients to my cell phone number. I am continuously being harassed for an account payment not made, they are refusing to give me their customer identity details so I may open a police case against him/her. My cell phone number has also not been removed from their clients records as yet - I do not recommend anyone shops at Ackermans, Lindokuhle you ow Ackermans R3157.00, account details: *** and ref ***