The energy label must be clearly displayed in any point of sale of the refrigerating appliance with direct sales function, such as showrooms, trade fairs, online sales, etc., i.e. wherever the potential cabinet buyer may consider purchasing the appliance itself. 
Regarding the position of the label, there is no precise requirement for the position but the fact that it shall be clearly visible at any time for the client.
There is no obligation for food retailers to display the energy label in their stores.