Harrasment from Hahn Collections

My wife received this SMS from you: Mev Mm Muller, THABAZIMBI LOCAL MUNICIPALITY has handed over your account to HAHN COLLECTIONS with a balance of R3 789.09. Please settle your account immediately or contact Natalie on ********** 130. ***

I am writing this on behalf of my wife. Stop pestering us, we NEVER had an account with Thabazimbi Municipality, if you doubt us, PROOF IT, by sending a copy of the account with Thabazimbi Municipality.