Use the methods currently shown at checkout. Manual proof uploads require staff verification; online payments can need provider confirmation. An order number alone does not confirm payment.
Check your existing order and contact support with its number and the transaction reference before paying again. Reversals and settlement times depend on the provider; no fixed automatic reversal period is guaranteed.
Cash on delivery is available in selected areas. If it is offered for your address, you will see it as a payment option at checkout.
Approval and completed refunds are separate. Your request shows the amount and transaction reference once recorded. Timing depends on the payment method and provider; contact support for an update rather than assuming a fixed number of days.
Use an order-related support ticket to provide a missing proof privately. Include the order and transaction references. Do not post the proof in a public review or create a duplicate order just to upload it.