MTN call forwarding

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I cannot deactivate call forwarding on MTN, either through "Settings or with the *# codes. Normal Customer services (808) cannot deactivate it also. This must be done on network level. I have tried to escalate my fault but no success yet. Dr_Data on this forum helped others in the past? Anybody else that can help?

 

[Sarel0092]

I cannot deactivate call forwarding on MTN, either through "Settings or with the *# codes. Normal Customer services (808) cannot deactivate it also. This must be done on network level. I have tried to escalate my fault but no success yet. Dr_Data on this forum helped others in the past? Anybody else that can help?

Have you tried the below USSD code:
##002#

See below links:
http://www.mtn.co.sz/services/calling/Pages/call-forwarding.aspx
https://www.mtn.co.za/everyday_services/calling_voicemail/Pages/Callholding.aspx