Aetna denied my claim, been two month of them sending it to manual re-processing, what should I do? More details below.

March 11th - ER in Bali, Indonesia. Member services confirmed that foreign ER visits are fully reimbursed. I pay 12K$ for my ER visit (3 broken toes).

March 12th - I submit reimbursement claim with all of the requested documentation - medical documentation, diagnosis and discharge summary, payment receipts, bank statement, information about this accident relevance to an accident or not, statement that I don't have other insurance coverage (also checked this in my Aetna profile).

April 2nd - I receive notification that they require more information from me. Specifically information about diagnosis and codes and information if this was related to an accident. Event though I've initially submitted those, I re-submit it again through messaging center.

April 12th - I receive explanation letter from Indonesia hospital explaining why their codes a short standard compared to US.

April 16th - My claim receives status Denied in the portal. Upon contacting member service they they it's still being worked on. I manage to get transferred to claims department and they tell me they actually miss detailed bill. I submit it right away.

April 20th - I make 3 calls to get status update, they give me conflicting information but say claim is reprocessing.

Today, I've called again, members department tell me that claim is denied because they missing information about diagnosis and if it was related to accident (same as on April 2nd), and I am having trouble get past member services.

What should I do in this situation? Was it all a lie after I've received claim status Denied and they don't really reprocess it?