Hi @AlperKutlu, sorry for the delay in seeing this post! We have recently made a few updates to our pricing system that affected the coupon creation, our team is currently working on a fix. We apologize for the frustration and inconvenience this is causing.
Please feel free to contact the team via instructorsupport@udemy.com so they can provide personalized assistance and possibly compensate for the problem, such as issuing new coupons to replace the ones that didn’t function.
If there's anything else I can help with, please let me know!
Bella Almeida
Udemy Community
... View more