How can I choose an appropriate purchase quantity?
Look for any minimum or maximum order amount stated by the seller. Avoid assuming a larger quantity automatically provides better value.
What should I do if I may have placed the same order twice?
Do not assume an unintended order will be canceled automatically. Review the corrected order quantity so an adjustment does not remove what you actually need.
What should I check if I cannot find an order confirmation?
Check the order history available through the purchase channel before placing another order. Keep any reference or screenshot of the submission result for a support inquiry.