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Air Bar Diamond 4 Returns and Credit Notes Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
A clear returns and credit process on Diamond 4 protects the relationship when something goes wrong.
Wholesale demand in this category is driven less by novelty than by consistency, and returns and credit notes is where that consistency is measured.
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Diamond 4.
Why returns and credit notes matters on the Diamond 4
Distinguish between a defect claim and a change of mind before agreeing any action.
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Diamond 4.
Credit notes should reference the original invoice line to keep accounting clean.
Reference specification
| Item | Value |
|---|---|
| Model | Diamond 4 |
| Brand | Air Bar |
| Category | E-Liquids |
| Battery | 800 mAh |
| Output range | 12-25 W |
| Capacity | 1.0 ml |
| Charging | USB-C 2A |
| Coil options | 0.8 / 1.2 ohm |
| Carton quantity | 240 units |
Agreeing who pays return freight in advance avoids most disputes.
Practical notes for buyers
A written internal standard for returns and credit notes makes onboarding new account managers far quicker and reduces avoidable errors.
The most common mistake is optimising for the first order instead of the fourth, which is where Diamond 4 economics actually settle.
Checklist
- Keep certificates current and filed against the exact model name.
- Request batch photographs and a packing list prior to shipment.
- Review the reorder point after one full selling cycle.
- Log sell through by account for the first eight weeks.
- Agree in advance who pays for return freight on a defect claim.
- Check carton quantities against the commercial invoice line by line.
Commercial terms
Currency movement over a ninety day cycle can outweigh the difference between two competing quotations.
Most long running accounts settle into a rhythm of monthly top ups with one larger seasonal build per year.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (142 units) | Tier 1 | 14-21 days |
| Pallet (986 units) | Tier 2 | 14-21 days |
| Container (8054 units) | Tier 3 | 7-12 days |
Frequently asked questions
Who pays return freight on a Diamond 4 defect claim?
For confirmed defects the supplier normally covers it; agreeing this in writing before shipment prevents arguments.
Is documentation provided for customs?
Commercial invoice, packing list and the relevant certificates are supplied; the importer's broker handles the declaration.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Final word
None of this is complicated, but it does need to be written down and reviewed on a schedule.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.