Read it yourself.
That is for debt collection - the Credit Card agreement I posted is also for sales pitches for other products. They can still come and knock on your door to sell you stuff, like CC insurance services. The agreement just says "reference your account".
“They can still come and knock on your door to sell you stuff, like CC insurance services.”
They cannot violate local, State and federal laws regarding menacing, trespassing, harassment, etc. I don’t care what document they have on their person.