The seal on the diploma of online education of Central South University is unclear, so it is suggested to contact the relevant education department or the online education college of Central South University as soon as possible. You can contact the college through the school official website, telephone or email to explain the situation and ask the college to issue a clear diploma again.
Generally speaking, the appearance of steel seal or illegible handwriting on the graduation certificate does not affect the normal use of the certificate. It is recommended to keep the original graduation certificate properly to ensure that it will not be damaged or lost in subsequent use.