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-> Special Features -> Mileage Shop
In Mileage Shop, you can exchange Mileage for Mileage Boxes:
1x Mileage Box 30 for 2 Mileage,
1x Mileage Box 70 for 3 Mileage,
1x Mileage Box 140 for 4 Mileage,
1x Mileage Box 190 for 5 Mileage.
You have to be Member in order to exchange Mileage Boxes. (Basic Membership (for 30 Mileage) is enough)
Exchanged Mileage Boxes will be in your MyShop inventory.