Login code already used

I recently followed a course with a login code and now want to continue, but the system now says that the code has already been used. What now?

When you purchase an online course from one of our experts, you will receive a login code or discount code from the expert. This code will give you access to a specific course. The code only has to be entered once. After that you will have unlimited access to the course. 

When you open the course, you can continue the course via the Go to course button. Do you still see a price and is the system asking for a discount code? Login via the Login button in the top right corner first.