If you want to contact the instructor:
https://www.facebook.com/tarekroshdyabas/
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You can access the exams on Udemy from this link

https://www.udemy.com/istqb-foundation-level-2018-syllabus-exams/
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You can watch the ISTQB Agile Tester Certificate videos from this link
https://www.youtube.com/watch?v=XISnvvGc2K0&list=PLbJF4g421wqnVAC0IXONnGoT4N6Z9pUrf