Ordering this service you will get an Allied race unlocked for your account. Each Allied race comes with its own unique mount that will be available for all of your characters. You can also get an amazing heritage armor set if you level an alied race from 20 to 110 without instant upgrades. Bonus rewards: reputation achievements and access to factions reputation goods.
ETA: Each Allied race will take up to 2 weeks to become unlocked, heritage armor set unlock will take 7 additional days.
Options and rewards:
1) Void Elf – Exalted with Argussian Reach + Starcursed Voidstrider
2) Nightborne – Exalted with The Nightfallen + Nightborne Manasaber
3) Lightforged Draenei – Army of the Light Exalted + Lightforged Felcrusher
4) Highmountain Tauren – Highmountain Exalted + Highmountain Thunderhoof