Instagram error when trying to upload DL

Hello,

I put in the wrong birthdate on my business Instagram account, so it was disabled. When I long in it tells me to upload my ID but when I do I get an error message. I try to submit an appeal and it tells me to first confirm my identity which is not possible because I keep getting an error message. I really need some help. I've put so much work into building a small business and I am so devastated that I have lost all my networking contacts and pictures it's how I conducted all my business. I have other IG accounts and a FB with all the same information as my disabled business account. I am at a loss as to what to do.