https://www.thedrive.com/the-war-zone/ukraine-has-no-number-to-call-to-troubleshoot-its-200k-javelin-missiles
I recall a similar issue where support only responded to an online request. They would respond with a call-back within one hour but they only tracked support tickets received online. There was a 1-800 number but IT tickets were not tracked if there was a phone request.