How do I seal the materials for delivery?

There are detailed instructions on the form, however in brief – please seal the sample inside a plastic ziplock bag and seal (a sandwich bag is fine). Place all samples inside a second plastic ziplock bag and seal. Place this inside a plain envelope marked with our address
For Melbourne:

Office 24, 15 Cochranes Rd
MOORABBIN VIC 3189

or for Sydney:

Office G12, Building C104, WSSH
5 Fleet St
NORTH PARRAMATTA NSW 2151