Demanding an interplead and attorney has caused conflict

I think I need to demand an interplead from my attorney. She has stated about taking us to court but never mentioned an interplead. I posted on here before and an answer was to ask for an interplead. The problem is that my lawyer is holding a check with a name on it that she won't let me know but says it's for the hospital lien. There is no lien and she ignores my questions when I ask about this lien. The hospital bill is with a collection agency. I can't communicate and negotiate with the hospital to bring down their unreasonable rates because my lawyer has contacted the collection agency to say she is solely to be named on the account without telling me! All communication to the collection agency has to go through my lawyer but I can't even get her on the phone after several attempts and being led to her voicemail and no one calls back. She has created such a mess out of this and there's no benefit for her that I can see for why she's doing this.