Circle Passcode Delivery Issue

I recently purcahsed a new iphone, and after setting up the new device, the Circle App is requesting a passcode before I can use it properly. I am the only admin on the account, and despite several requests for the app to send me a new passcode I haven't received anything. As a result I can't access any of the information, nor manage any devices on the service. I'm using an Orbi RBR50. Thanks for your help!