Where does the code appear, and how long should I wait before cancelling?

The code appears on the number's card in My Numbers shortly after the SMS reaches the number. It is not sent to your own phone or by email, and it never arrives in a support ticket. Most codes arrive within the first few minutes after you enter the number in the app or site you are signing up to; tap Refresh on the card to check again. A number stays active for about 15 to 20 minutes, depending on its supplier, and the card counts down the time left. The Refund button unlocks 5 minutes after you buy the number and shows a countdown until then; a refund puts the number's price back on your balance within a few seconds (together with the 10% search fee of a multi-country automatic order). If the service rejects the number, or nothing has arrived after a few minutes, refund it as soon as the button unlocks and try another number or country. If you do nothing, HidSim cancels the number when its time runs out and refunds it automatically, so you do not need to open a ticket.