Caveat emptor effect that the initial transfer or license of intellectual-property rights is preserved. Most stores require proof of purchase and impose time limits on exchanges or refunds. Some larger chain stores, such as F.Y.E., Staples, Target, or Walmart, will, however, do exchanges or refunds at any time, with or without proof of purchase, although they usually require a form of picture identification and place per-transaction and/or per-person quantity or dollar limitations on such returns. In the UK, consumer law has moved away from the "caveat emptor" model, with laws passed that have enhanced consumer rights and allow greater leeway to return
What Do You Mean? also debuted at number one the "Billboard" Hot Digital Songs chart, selling 337,000 copies in the week ending September 3, 2015—marking Bieber's second number one single on the chart, following "Boyfriend" which sold 521,000 in its debut week. In its second week, "What Do You Mean?" stayed at the top of the Hot Digital Songs chart with sales of 159,000 copies, however, it descended to number three on the Hot 100, with a decrease of 30% in overall activity, but rebounded to the runner-up spot the following week and stayed as the best-selling song with 128,000 downloads. On the chart