I have not called, but I do know a family locally who claims to have inquired about the Friendly ice cream birthday cakes. The mom is a pediatrician, and they discuss allergies with me regularly. They seem pretty tight. They told me the ice cream cakes were nut safe, and the packaging cautions something ot the effect they are not responsible for any allergens that might be in added decorations after manufacturing. Meaning, if you, or a party place uses it and adds decorations, etc... I have not taken the plunge myself.
I do know there are nuts on the Jubilee roll. So, maybe a cross contamination risk. Did you call the company?