Impossible to Blacklist ****** phone

<p>After numerous calls to the 808 number and patiently waiting 8 days for follow up (after promises to sms me the ITC reference number) I am unable to blacklist my handset which has been ******. After 49 minutes on the phone with a consultant I was told she could do nothing else to assist and I need to go to an MTN store to begin the process again. I have the original contract, the orginal box with the IMEI number and the system is unable to blacklist it. MTN this is unacceptable. </p>