Settlement/Closure Letter - Terrible Service!

I am a current Telkom client who cancelled their fixed line - residential with you due to my lines being ****** and not replaced. I am happy to keep my mobile contracts with you but I urgently required the settlement/closure letter from you for my residential line and I requested this over 2 weeks ago due to my attorney and bank needing it but I have still not received this. I would like to remain a customer but this poor service is really not convincing me to stay with Telkom. Please provide me with the settlement and closure letter urgently as I am going to lose my pending house bond without this letter.