Old Music Man (80's 90's) guitar hardcase key

I have an 1993 Silhouette with this older hardcase. I haven’t got the key for it, I need it. Does anyone have one or two for sale? Or where can I buy keys for it? I contacted with the customer service but no answer. The case is original and came with the guitar with all the specifications papers etc. I attach a picture about the exact case.
Thanks in advance.