Based on my experience and common sense, I believe that one should exercise extreme caution while interacting with new services, particularly those that handle sensitive data. If this KeychainX representative doesn't get back to me, I believe they may be searching for another choice. Although I'm really interested in KeychainX services, I require more information before making a commitment. Also, I believe that other clients are becoming quite suspicious of you because of your silence.
You are correct, since wallet recovery involves sensitive information one needs to be very careful in other not to expose ones assets to the wrong hand so we need to exercise extreme care on how we go about this. The service provider are supposed to be reachable so that people can easily communicate then incase they need clarification as regards the service they are offering. If keychainx continue to remain silent people will begin to think that the service is a scam . Even person that may be trying to give there service a try may change there mind because of this lack of response. They should try as much to address some of the questions here at least it will clear some doubt some people may be entertaining.