How much does this service cost?

The Visit eVisa has the following fee structure:

Fee for Visit eVisaBD 5   (approximately USD 14)
Processing fee for Visit eVisaBD 2   (approximately USD 5)
Total feeBD 7   (approximately USD 19)

Note that if an eVisa application is not approved, the visit visa fee will be refunded but there will be no refund of the processing fee.

What are the conditions?