Switching back to Vodacom do I need to RICA again?

I am a little tired of no data on cellc so I want to maybe switch back to Vodacom. Do I need to RICA the number again or can they just port me back? The number was originally a Vodacom number that was taken to cell c now I want to switch back. Also what do I need to get it RICAd if I need to do it again?

Thanks