Speak with your RPL coordinator (whomever it is that handles you) and discuss it with them.
With a Chef's Apprenticeship for RPL you need to have documented evidence of all prior learning and also previous working experience (length and duties) are taken into account.
There is a form you fill in and submit all evidentiary backing, they then take it all under advisement and provided it is accepted, they inform you of how many months your experience and prior education deducts from your apprenticeship.