Hi Simone, so sorry to hear that! No I didn't notice a smell or I would've never have sent them. All belts are stored in plastic airtight tubs, and all the belts ordered are stored in separate containers. The items are on clearance as we are clearing the items to make way for the new belt range, I would never sell faulty/soiled items unknowingly!
Your parcel sat at the post office awaiting collection for 9 days, perhaps something soiled them there.
Anyhow, we're more than happy to refund you as per the ACCC faulty goods return policy.