The seller makes the claim, and in such accepts the responsibility of fulfilling that expectation…..if the purchaser could display that the scope was received in any condition other than that made by the sales obligation, Agena should have sent a call tag and offered either an exchange or refund.
So tell us exactly what was not as described in the ad.
WRT the black paint, there is nothing unusual about flat black being soft. It is not glossy for a reason. A small amount of transfer when one rubs the inside of the tube is just fine. And, oh by the way, who rubs the inside of a telescope tube? Can you think of a worse place to impart shiny oil from one's fingers?
The tight tube rings are, as someone said earlier, not a flaw. If the OP wants tube rotation rings he can buy them. I had them at one time and they are expensive. Having the tube held tightly in the rings is not only safer for the scope it is necessary when you hang a heavy camera at the end of a Barlow.
The notion that we should be allowed to return something for no reason at all is fairly new. I call it the "Amazon Effect". Return policies are a simple business decision. I make custom items and do not allow returns at all. (Unless we have made a mistake.) A returned scope costs the company a ton of money. Not only are they on the hook for the shipping out and back, they have a scope that has to be sold at discounted prices. And I think our vendors here will confirm that there is very little profit in a telescope.
So I am sticking up for Agena here. And I sincerely hope that the OP can enjoy his new scope. He got exactly what he paid for.