Internet payment for cellc account

I made and internet payment for a friend to CellC accounts department on the 26/04/2015.<br> <br> Unfortunately I made an error and used the wrong cellphone number as<br> reference number.<br> <br> She has two accounts, one Prepaid and one Contract account<br> <br> The payment of R363.24 was to her Contact account.<br> <br> I accidentally used her prepaid number as reference instead of the contact number.<br> I`ve been told by CellC customer care to email the proof of payment to [Email Removed]<br> I included her name/surname, id number and contact cell phone number in the email. I`ve done so twice now.<br> <br> She contacted cellc and they now state that the account is now over R700 in arrears.<br> I`ve used her contract cellphone number as the account number in this complaint and since I paid the account and have the proof of payment, I used my cellphone number as the mobile number for this complaint.