The credit card form doesn't …
The credit card form doesn't accept my 15-digit Amex number
Card numbers aren't always 16+ digits :) I love this service, and I'm trying to give you money!
October 25, 2017
How do I remove credit card info from my profile?
Japanese listening questions don't accept kanji.
Duolingo Licence number
I want to see the number of exercises on a level again
"New" filter not working in Troubleshooting form ?
Duo will not accept my new password
Words tab doesn't show infinitive form of verb
Demonstratives 3 in French Doesn't Give Full Credit
new computer won't accept my Duolingo account name
Duolingo English Test
Learn a language in just 5 minutes a day. For free.