The people operating the ticketing systems that are being abused will need to individually take action to deal with those incoming false support requests. They’re already aware of it, you don’t need to try and tell anyone.

Another thing to be aware of - sometimes malicious actors will do this in order to overwhelm your mailbox because they’re doing a identity theft or account takeover thing against you, so watch out for emails that say some password of yours was changed, or a purchase was made or something. This might not apply to you, you mentioned other recipients. But it’s still good to know.