Read your invoice and digital warranty card in one minute

The invoice and warranty card are two papers most people file away unread. When you need service, a trade-in or to complain, they are your only evidence. Here are six things to check in one minute at the counter.

Six points on the invoice

1. Item name and code. The code matches the laser engraving inside the ring or on the necklace clasp.
2. Purity. Shown in parts per thousand (750) or karats (18K). 18K white gold is still 750.
3. Weight. Metal weight and stone weight shown separately, matching the scale reading when staff re-weigh in front of you.
4. Three price components. Metal value, labour, stone value. Never merged.
5. Price board used. The time or number of the board used for the gold price.
6. Payment method. From 20 million VND a day, the invoice shows transfer or card.

What the digital warranty card holds

• A lookup code linked to the item code.
• Stone details: for diamonds from 0.30 ct the report number; for melee the count, total carat, colour and clarity range.
• The buy-back and trade-in policy in force on the purchase date, with its version.
• Service history: every cleaning, prong check and resize logs weight before and after.

If you lose the paper

The warranty card is digital; look it up by phone number and item code. The e-invoice can be retrieved with the lookup code printed on it. On buy-back, KBMC finds the original record from the laser code, so no paper invoice is needed.

Spot an error, say so

Wrong name, wrong purity, weight below the tag, missing report: tell staff before leaving the counter. KBMC cancels and reissues the invoice, or you decline the sale. After leaving, file a complaint via Complaints and get a response within 24 hours.