Postbacks not making it to our server

Hello we are new to clouldflare and we are having a issue with our billing partners posting back to our servers. I have gone into the firewall settings and whitelisted the billing company’s ip ranges but still no communication. I have also not seen any firewall events that would indicate the postbacks getting blocked. No errors are showing up in our servers or our billing partners. Please help ticket # 1456307

Looks like support already got back to you. I’m going to go ahead and close this.