On 20/06/2013,
you requested for the version in force on 20/06/2013
incorporating all amendments published on or before 20/06/2013.
The closest version currently available is that of 01/04/2005.
4. An option to purchase any commercial property given by a vendor to a purchaser shall be in such form as may be prescribed except that any additional term or condition which in substance does not affect the prescribed form may be included in such form.