Refund on policy

So very disappointed and disgusted by Avbob's customer service. I reduced members on an existing policy in March. Come end March the stop order went through, I immediately informed Avbob about this and asked them to send me a letter with my new premium. I then gave the letter to my HR and requested refund from them, I was asked to send my certified ID and proof of account for refund purposes, I did that on 5th April 2024, ever since then I have been calling the call center, different emails are being sent to different departments dealing with my refund. I currently have 3 refunds pending with Avbob and there is no communication from them. I need this matter to be sorted out immediately as this is my last resort to lodge a formal complaint.