How to activate an Endota Gift Card key?

Activating an Endota Gift Card key is really simple, just follow these steps:

• In-Spa:
  Present the gift card (physical or digital) at any endota spa location to redeem it for treatments or products.
• Online:
  You can use the 20-digit gift card number at checkout on the endota spa website when purchasing products.

The key is not working

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions:

• My key is Duplicated / Already Used. How can I proceed?
• My key is Invalid. How can I proceed?
• My key is region locked / can't be activated in my country. How can I proceed?
• My key activated a different product that it was supposed to. How can I proceed?
• The key I bought didn’t activate all of the content it was supposed to. What can I do?