We appreciate you taking the time to report this error to us. However, there are still some details that we need to collect from you before we are able to investigate this properly. If you could please provide the following information, we will make sure that your report is looked into so we can try to resolve it.
Screenshots of your free company pane would be very helpful, especially one with your free company's rank and the like. Another screenshot of you speaking to the OIC Officer-at-Arms, and him telling you you cannot customize a crest would also be appreciated.
You are the master of your free company, correct?