Invitation codes may not be available in the following cases.
When the invitation code is manually entered (as opposed to copied and pasted)
This is because hard-to-distinguish letters such as lowercase "L" and uppercase "I" may have been entered incorrectly.
Be sure to copy and paste the invitation code.
When there are extra characters such as spaces before or after the invitation code
It is possible that extra characters such as spaces may have been included when copying and pasting the code.
Be careful when copying and pasting an invitation code.
When you enter your own invitation code
Invitation codes are for people who have not yet started using GeoSmile.
Using your own invitation code is considered unauthorized use and may result in account suspension.