Hello Tendani.
- For a screen lock PIN please follow the instructions here http://www.satechhelp.co.za/index.php?qa=400&qa_1=how-to-hard-reset-sony-xperia-s
- For Vodafone protect please go here http://www.satechhelp.co.za/4644/Reset-Vodafone-Protect-Pin-Online-South-Africa?show=4644#q4644