All sets of keys delivered with every Voltbike are unique to each battery enclosure. This is why we provide our customers with a set of 2 keys in case one goes missing you still have a backup. Just like any car dealership, we would not hold on to sold bike keys just in case you lose them.
In the case of a loss of both keys, the only alternative would be to drill out the existing battery casing connecting the battery to the frame and replace the keylock assembly.