Cannot get text forwarding code

Trying to set up text forwarding for my iPhone to two other macs and for the love of all things holy can't get text forwarding code to show up on my macs. Had it working yesterday on both macs - but then I decided to monkey around with the settings - wrong move there.

So anyway I have tried every permutation of restarting all devices -- logging out of/turned off iMessage on devices and logged back in/turned on again -- logging out of iCloud and back in -- all are using same Apple ID -- like I said this was working fine before I tried to monkey around with it. Is there some deep way I can reset all the options here? My iphone "sees" both macs - I just can't get a code to show up. Email is checked -- everything is on same wifi.