Thanks, trouble is - I need to do this on loads of devices. Perhaps Telkom Mobile is the wrong network to choose.
If all the numbers are linked to your account then there is a faster way.
Just logged on to pay my landline account and found the section.
So go into My Telkom. You might need to register if you arent already.
Then under personal accounts look for manage subscriptions.
Under manage subscriptions you should be able to select your cell number and then select the OOB option you prefer.
I can see my 2 sims that were Rica'ed to my name on there.