Bangladesh Online School serves thousands of students locally and internationally. Whenever any client purchases our courses, instant access is given to the video contents. If they face any technical issue, they require to contact BOS technical team by sending email to [ firstname.lastname@example.org ] or by sending SMS to +8801322805970 and within 48 hours, BOS tries to solve the issue. So, BOS has no refund system. Again, BOS does not take return of any contents, as these are not products rather video contents. Our clients can watch sample contents, read terms and conditions and take decisions for purchasing or declining.