cant SIM swap upgrade after upgrading

I have upgraded my existing contract using Vodacom online services. After the upgrade, I am unable to do the SIM swap upgrade to start using the new handset and new SIM card.<br> <br> Roxanne Chetty from Online services informs me that even though I upgraded the contract on the 12th of March, and received the handset and SIM on the 13th of March, I should wait till the 1st of April before they are willing to do the SIM swap upgrade.<br> <br>