Stuck with subscription review

I've published my app with subscriptions (app changed from paid to subscription model). I've have succesfully pass review process and app was published to App Store without subscription store, so no one can buy app (still working as paid, but will expire in few days forcing users to subscribe). I want to attach subscriptions to new build, but I can't - there are no options mentioned in documentation. I'm stuck. There is no any contact point to review team. I've created 3 cases, nobody reads them (oldest 3 weeks). The whole approval process looks broken, Apple team shouldn't approve app with subscriptions without subscriptions added to review. I must immediately publish my app with critical fixes, but I can't. I am devastated, i don't know what to do...