Research Use Only - Not for Human Consumption

Payment Proof Guide

Payment proof helps Carteum match a customer order to a payment reference before packing and shipping. Customers should submit proof only after receiving approved instructions.

Payment Proof

Quick Answer

Payment proof can be a bank reference, PromptPay screenshot, or USDT transaction hash, depending on the selected method. It must match the order ID and selected payment path.

Payment Proof

Proof Checklist

Order ID visible

Use the order ID from checkout or the order email.

Payment method matches

Use the same method selected at checkout unless support confirms a change.

Reference is clear

Upload a readable screenshot, bank reference, or transaction hash.

Wait for verification

Do not assume payment is verified until Carteum confirms it.

Payment Proof

Upload Page

The upload flow lives on the payment proof page and should be used after order review.

Upload Payment Proof
For Research Use Only - All products are sold strictly for laboratory and research purposes only. Not intended for human or veterinary use, consumption, or therapeutic application. Not approved by Health Canada, the US FDA, the Thai FDA, or any regulatory body.