Great job, OP. The title is pointing finger to Bestchange but they have no fault here, it is my opinion. If you agree, can change the title in "Bestchange Campaign abuse" or "Signature campaign abuse by alt", your wish although.
Waiting for DT here to tag 
You should also notify this topic to Bestchange's signature campaign 
You are DT of your own and allowed to tag anyone if you think they deserved to be tagged. You should also notify this topic to Bestchange's signature campaign