My education activity was approved before, can I use the same approval again?

No.  Each instance of an event must be individually assessed.  

Recurring Activities

If you hold recurring activity e.g. if it is repeated on a number of occasions within the same Professional Competence year (May to April), we will be able to assess them all in one application.  You will need to provide a confirmed schedule of dates, venues and topics with your application.

It is necessary to submit a new application for each Professional Competence Year.