All orders are processed within 1 to 4 business days of purchase. Orders placed on weekends or Victorian public holidays will be processed on the next available business day. If there is any delay with your order, or if an item becomes unavailable after purchase, we will notify you promptly via email.

Delivery times are estimates and may be subject to delays during peak periods such as Christmas, Valentine's Day and Mother's Day. We recommend selecting express shipping for time-sensitive orders.

Delivery times may vary depending on your location, local postal services and customs processing. We are unable to guarantee delivery by a specific date for international orders.

International orders may be subject to customs duties, import taxes or other fees imposed by the destination country upon arrival. These charges are entirely separate from your Zostma order and are the responsibility of the customer. We recommend contacting your local customs office before placing an order if you are unsure of any potential charges that may apply.

In accordance with Australian and international law, we are required to accurately declare the full value of all shipments on customs documentation. We are unable to mark orders as gifts or declare a lower value than the actual order amount.

Once your order has been dispatched you will receive a shipping confirmation email containing your tracking number and a link to follow your order. Please allow up to 24 hours for tracking information to become active after receiving your confirmation. If you have not received a shipping confirmation within 5 business days of placing your order, please reach out to us at info@zostma.com.

Please ensure all shipping information provided at checkout is accurate and complete. Zostma is not responsible for orders that are delayed, lost or returned due to an incorrect or incomplete address. If you realise you have entered an incorrect address, please contact us immediately at info@zostma.com — as we process orders quickly, we cannot guarantee changes can be made once an order has been placed.

If a package is returned to us as undeliverable — due to an incorrect address, failed delivery attempts, an unclaimed parcel or refusal at customs — we will contact you via email to arrange reshipment. Please note that additional shipping charges will apply.

If your tracking shows your order as delivered but you have not received it, we recommend first checking with neighbours, building management or your local post office. If your order appears to be lost in transit, please contact us at info@zostma.com and we will work with the carrier to investigate and resolve the matter as quickly as possible.

Please allow the full estimated delivery window to pass before reporting a missing order, as delays can occur particularly with international shipments.

If you have any questions about your order or our shipping policy, we are always happy to help. Reach us at info@zostma.com.