US Immigration from Barbados

I got rfe for proof of bonafide marriage at USCIS stage. I am trying to upload my documents but they say uploading but are not actually being uploaded. Someone suggested uploading one at a time but the notice says I only have one chance to upload the documents. Has any one had experience with submitting more than one files? I'll attached screenshots

I contacted the Ombudsman office on Monday 8/17 and submitted my medical records to them because I requested an expedite from USCIS and was told on 7/27 "Your case is currently under review by an officer. We regret that we are not able to give you a time frame for when we will complete the review of your application." No reply since then. I also contacted my congresswoman in early July and have not received a response back from them as yet.

On Friday I called the Ombudsman again and was told a manager reviewed my request and has placed it in the expedite queue and an analyst should be contacting me within the next few days.

What can the ombudsman do for me in this scenario? Am I wasting my time?

I'm a veteran and naturalized USC. I was in the US since I was 6 years old. Filing CR1 for my spouse.