*Minimum purchase of 3 boxes of contact lenses to receive 1 box of the same type and prescription at no further cost. Purchase to be made in one transaction. Offer cannot be used in conjunction with any other discount, offer or benefit from any source (including any staff reimbursements) other than a rebate from a health fund. Product exclusions apply and include any lenses which are considered rigid gas permeable or specialty fit contact lenses. Offer valid until 31 March 2017. Subject to stock availability. Offer is redeemable online only at OPSM.com.au & OPSM.co.nz. Promotion code FREEBIE must be entered in your cart in the promotion code field for online redemption.