Two first apps stuck in App Review for 6 to 14 days, support cases unanswered. What worked for you?

I'm a solo dev with a new account, and both my first apps are taking far longer than Apple's usual "90% within 48 hours". App 1 (submitted Sep 27): waited 11 days, then rejected under 2.3.6 (age rating needed "Messaging and Chat" set to Yes). Fixed it, resubmitted, have been waiting today for 7 days. App 2 (submitted Oct 5): Apple asked for more info under 2.1, noting my account has a limited review history. I replied the same day with everything requested. Still waiting 6 days later, no new messages. Already done: agreements, tax and banking all active; subscriptions submitted with each version; every message answered; expedited review requested Oct 7; support cases opened a week ago with no reply. I haven't cancelled anything, to keep my place in the queue. Please help me out, appreciate it, thanks!