MTN Call Center No Use

Good Day,

I am needing support to assist in recovering my username and password when logging into the below website. When I try forgot password it does not accept my username and cellphone number. https://signon.mtn.co.za/mtnnewwebsso/pages/login.jsp?contextType=external&username=string&password=secure_string&challenge_url=%2Fmtnnewwebsso%2Fpages%2Flogin.jsp&request_id=***&authn_try_count=3&p_error_code=OAM-2&p_error_codes_list=OAM-2&locale=en_GB&resource_url=https%253A%252F%252Fportalsso.mtn.co.za%252FAccount%252FUserManagement.aspx I have called the call center numerous times and the service is really bad, the agents do not understand what I am asking and the calls keep dropping and I end up repeating myself like a parrot.

Please can can someone from your support team help. The end goal I am trying to link my Apple Watch for Cellular.

Kind Regards, Conwell Less ***