Disgusting service

for Avon spefically. Wrote to Carol Andrews requesting a paid up letter so that I can have my credit bureau updated, she past my request to the account department and Oscar wrote to me that I have an outstanding amount which i paid same day Last week Thursday and emailed the proof of payment for ease of reference. Since yesterday, I have been emailing Oscar and copying Carol for the paid up letter and I am receiving nor response from both. Maybe I should go to the competition commission or to the ombudsman.