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• How do I order a special gas mixture online?
• Can I order over the phone?
• How do I cancel an order?
• How can I amend an order that has been placed?
• Can I repeat an existing order?
• I have received an incorrect item in my order, what should I do?
• An item is missing from my order, what should I do?

• How do I place an order for collection-only for my empty cylinders online?
• My holdings are wrong, what do I need to do to correct them?
• I have returned my cylinders, why am I still being charged?
• How do I report lost or stolen cylinders?
• Can I buy a cylinder from Linde HKO?

1. How do I order a special gas mixture online?

You can't order bespoke special gas mixtures online, for all queries relating to special gas mixtures contact our Customer Service Centre on +852.2372-2288, or use our Contact Enquiry Form to send us your requirements.

2. Can I order over the phone?

To place an order over the phone contact our Customer Service Centre on +852.2372-2288.

3. How do I cancel an order?

Call Customer Service Centre on +852.2372-2288. If orders have been arranged for next day delivery you must contact us by 5pm. Please have your order reference number to hand when making any enquiries.

4. How can I amend an order that has been placed?

Contact our Customer Service Centre on +852.2372-2288 to change your order. If orders are for next day delivery you should contact us by 5pm. Please have your order reference number to hand when making any enquiries.

5. Can I repeat an existing order?

You can repeat an existing order by click the 'Reorder' button.

6. I have received an incorrect item in my order, what should I do?

Contact our Customer Service Centre on +852.2372-2288 and provide your order reference number.

7. An item is missing from my order, what should I do?

Check your order, it may be a split delivery otherwise contact our Customer Service Centre on +852.2372-2288 and provide your order reference number.

1. How do I place an order for collection-only for my empty cylinders online?

To place an empty-only order you can go to cylinder holdings, and enter your return quantities for your selected delivery address and proceed to checkout from there. Alternatively, you can browse the catalogue and locate the product to create a return from there.

2. My holdings are wrong, what do I need to do to correct them?

Please contact our Customer Service Centre on +852.2372-2288, or email us using the Contact Enquiry Form.

3. I have returned my cylinders, why am I still being charged?

Rentals are charged for a full calender month so you will still receive an invoice at the end of the month in which you returned the cylinders. Linde HKO's minimum cylinder rental period is one month. This means part month rentals will be charged as a full month. For example, a gas cylinder returned during May will be subject to a rental charge for the full month of May.

4. How do I report lost or stolen cylinders?

Please contact our Customer Service Centre on +852.2372-2288, or email us using the Contact Enquiry Form.

5. Can I buy a cylinder from Linde HKO?

Linde HKO only supplies cylinders on a rental basis, enabling us to maintain cylinders with regular testing to ensure they are safe and fit for use. Additionally, any cylinder which does not meet our safety standards will be removed from circulation and safely disposed of.