MTN Hands Me Over for ONE MONTH NON-PAYMENT

I missed a payment, MTN called me, I explained my situation and it was quickly rectified and in the meantime, I paid what I could afford in agreement with them, now I am stuck with a DEFAULT on my credit profile for 1 year. Don't you need to have missed a payment at least 3 times and be uncontactable before they do that? I am furious. Please take this off my record now, I have a report from Experian, I can send it to you NOW!!! I can't do anything, you ruined my entire life. What is wrong with MTN? After paying you over R25,000 in the last 2 years alone, this is how you repay me, with a default??? How can I even think of doing business with you again?