The notice should first say sorry for not coming to class on time, then explain the reasons, truthfully tell the reasons why you can't come to class, and then inform the students when to make up for the missed class, which has similar meaning.

Counseling institutions are educational and training institutions with the purpose of improving ability, cultivating skills, academic education and certification training. Training institutions need to have the requirements of venues and teachers. It needs to be certified by the competent education department and qualified by social forces before it can operate. The price of their training courses needs to be accounted and reported to the education department for approval. To increase courses or change fees, you must apply to the education department for approval before you can change them.