Problem book code
Read this first!
With LYCA, you cannot request an sms code. Use another mobile phone.
Wrong mobile number
A mobile phone code only works with the mobile number with which the code was requested.
No code received
Do not request a code again with the same mobile phone. Complete a form.
Safari – Chrome
Suddenly your code will not work anymore. If your browser is Safari or Chrome, clear cookies and turn off your device.
Code printed in your textbook
Codes consisting of 10 letters (without numbers) are valid.
We will answer your question as soon as possible during office hours.