Tall pine shelving unit - splits into two sections (Bloxham OX15)

This is actually two shelving units that are stacked, so could be separated into two low units or used as a tall unit (there are locating pins in the join).
Smaller unit is 70cm W x 37 D x 80 H
Taller unit is 70cm W x 37D x 118 H
so combined, they're 198cm H.
Two shelves are adjustable in the taller unit, one in the smaller.
Would prefer these to go together, please.