amazbackcom 
Dallas to houston bus ride:
Redeemable voucher up to 30 days before departure – 100%
Redeemable voucher up to 7 days before departure – 75% refund
Redeemable voucher up to 24 hr. before departure – 50% refund
Redeemable voucher up to 1 hr. before departure – 25% refund
Exchange date or time up to 30 days before departure – free
Exchange date or time up to 7 days before departure – 25% fee
Exchange date or time up to 24 hr. before departure – 50% fee
Exchange date or time up to 1 hr. before departure – 75% fee
