Question for Premier Palace Hotel

When I was going through the personal items of my mother (who passed away) I found a key with a blue label of your hotel indicating: PPH BOX 293 TECHIMAN and on the backside 2009. Could you please let me know if this key opens a lock behind which I might find belongings of her. Thank you very much to contact me with more information. Best regards, Katelijn
PS If you send me your email adress I can also send you a picture of the key.