I'd have to agree here... If you purchased the Ooma Core System under the premise that you could get the Premier Service for $99 then they should honor this. They could make it simple and just allow anyone using Premier prior to Oct 1 (whether purchased or trial) to continue to renew at the $99. Should you let your Premier Service lapse at any time then you would be subject to the new Premier Service rates. Just my $0.02...
Go AVS!