Petroleum Refining: Technology and Economics and similar items

This reflects the seller's handling time and may not include time spent in transit.
If you have questions about shipping, please contact the seller.

Return Policy:

We appreciate your business but understand that sometimes issues arise when shopping online. If the items are “not as described”, we will offer your money back. We 100% unconditionally money back guarantee all items to be authentic and exactly as described.

Beyond “not as described” items, this is not a retail store and All sales are considered FINAL, and all items are sold “AS IS”. We typically do NOT offer refunds on an item unless it is grossly misrepresented or damaged in transit.

If, on the rare occasion, that a refund is given because the buyer “changed their mind” it will ONLY be for the cost of the item. Shipping and Handling and selling site fees are non-refundable.

If an item has been damaged in transit, we will require the damage be VERIFIED before any returns or refunds will be considered. Photos of the damaged item and the box it was shipped in must be provided.

If there is a problem, we can and will work together to resolve the problem and always try to work with our customers to find a resolution and we will make every attempt possible to resolve the issue.

Bottom line, we want you to be happy with your experience!