Byju's — Not received as promised in the email

SST and English not worked(NOT ONLINE NOT WITH SD CARD)

On 08th of July we have first email about the course after few days we received sd card which is corrupted...
Second one received having only SCience and Maths...
Third one received corrupted one

Please check Satparnee Madam email attached
SST and English not worked(NOT ONLINE NOT WITH SD CARD)

You can see chain emails...In the initial email promised us for the sst and English but not worked at all

Getting below screen shot

I know you have 15 day policy but English and sst not worked at all...

On ipad for English we are getting below error "NOT authroised..."