Vodacom Porting Frustrating

Greetings

I have done porting request twice from Vodacom but both request are not going through from July 2019.

Initially I was using Vodacom and I ported to Telkom but now there seem to be problem porting back to Vodacom; at the Vodacom store they seem not to know what is the the problem.

The first port was submitted 3 time but all the attempt were in vain, up until Vodacom consultant decided to cancel the first port and now I'm on the second port but still it is not going through.

If I can just get confirmation of what seem to be problem or Vodacom cannot do a port back once one has used another network.?

Regards,