I called Immigration on Monday and they confirmed that the calculator had been removed and that 'people are therefore experiencing difficulties applying online'.
Nothing stopping us putting in a paper application in though not that i think it will make a difference with the processing but at least it will be submitted!
Border has now officially removed the citizenship calculator, no good!
Looks like our speculation of applications on and after April 20 being frozen are true. Most likely only be processed after early 2018 when new tests are ready. We are looking at extended wait times even if eligible under new rules.
I'm trying to get confirmation from a migration agent