Non-purchases and refunds

What are non-purchases and what are refunds. In which cases the buyers send the goods back. Read
Making a refund. How the process works on the buyer's side. Read
Receiving refunds. How the goods go back and how to pick them up. Read
Refund solutions. How the refund decision is made and how to file a claim. Read
Reselling at a discount. How to put buyer returns back on sale. Read