TPS,
Sorry that this experience has not gone smoothly. The delay in reimbursement has NOT been intentional. Every so often addresses are wrong or it just gets missed.
No one has or will ignore you as you say. These guys you called out by name are extremely busy and can't always get back to everyone.
They will get you your expenses reimbursed as promised.
As for the feedback on the interview. The previous posts are correct in EAS and most all other companies won't provide details on the interview.
The TBNT letter is how EAS does it, some companies won't provide any notice besides silence.