FREEDEL50
As the title suggests.
I just picked up a case of Steamrail Summer and Amber as per maxibonbits previous deal here.
I'm sure there are other specials that'll make this free shipping attractive.
T&C's as per the email:
Terms and Conditions: Please note Free Standard Delivery offer is only online and available from 27/05/2020 only until 11.59pm AEST 27/05/2020 or until stocks last. Offer applies on orders of $50 or more after savings and discounts, and promo code FREEDEL50 must be entered at checkout for the offer to apply.