I have the same problem - cannot generate promo codes. I also remember a day prior I accepted changes to the paid user agreement but it was flaky (it missed some steps). Nevertheless the status is I accepted it and got confirmation email. I have contacted support but so far they requested screenshots and steps to reproduce and sent it to technical team. Issue has been present since 29APR22

I am currently facing this issue.

Dear Apple. Either update following documentation (remove conformance to RFC2368) https://developer.apple.com/library/archive/featuredarticles/iPhoneURLScheme_Reference/MailLinks/MailLinks.html#//apple_ref/doc/uid/TP40007899-CH4-SW1 or fix this annoying bug.

iOS14 + iOS15beta2 only recognizes nopass, WEP, WPA, WPA2 or WPA/WPA2 within QR code You can check it using Hopper at: /Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/BarcodeSupport.framework

mailto:__@_?subject=Hello&body=11 (Accidentally missed the body)

This bug or "feature" is still present in iOS 14.7 beta 3.