Can I use my BlaBlaBus voucher on other websites? BlaBlaBus vouchers and promo codes can only be used for journeys with BlaBlaBus. Related articles Can I get a refund if I do not travel? How can I contact BlaBlaBus? I haven't used my voucher entirely, how can I get the rest of its value? How do I use my credit voucher? In which cases can I be given a credit voucher?