Unacceptable is a very clear word to me. An unacceptable circumstance is intolerable for business or customers. I’ve used an auto repair shop that’s convenient, reasonable in cost, and has an owner I believe is ethical. However for six weeks, their phone system hasn’t worked properly. When I call and no one picks up the call, it goes to voicemail except you cannot leave a message on any of the extensions. I brought this situation to the owner and manager on several occasions. Clearly this is extremely frustrating because I can’t get through to make an appointment to bring my car in. Or if my car is in the shop, I can’t find out if it’s ready.