To be honest, I bought and sold through VC and found it actually better as a buyer, you can buy items very cheaply, it does show the item location, so you do have an idea how long it takes, depending on where you are, yes it does take time, if you do want immediate delivery, it is not for you, but you usually do not get immediate delivery and the much reduced price you get on VC, to expect the item straight away and much cheaper than a shop, it doesn't work. You have the option of paying full price and getting it immediate from a shop, or you get it cheaper and wait, to expect both is simply unrealistic.
Look, I am in the UK, I make a point to send within 2 or 3 days, as I think it is common courtesy, it still sometimes takes 2 to 3 weeks to reach them if they are using ParcelForce, especially since Paris had a few protests. They can't beam items, usually it was pretty straight forward, there was one occasion where the seller flaked out and didn't send, and yes, i had to wait about a month until I got my money back but I knew that in advance.
As for the screenshot, there should be one in this thread somewhere, posted one before. It could be that your seller doesn't have that, could be for various reasons, maybe she cancelled a sale, makes you lose the trusted seller status, maybe she didn't reply fast enough to some questions or did not bother to reply because somebody just made a stupid comment (you sometimes get a "Hi there, I want to buy it for peanuts") and you actually have to reply, if a buyer asks to cancel a sale and you agree, as the seller you lose trusted seller status, as somebody said in the thread earlier, nobody knows when you get trusted seller status
If she has sent the item, what do you think VC or the seller should do if it is on the way? Wave a magic wand?
As for accepting returns, seriously? I am prepared to pay VC a commission to not deal with buyers who have buyer's remorse or want to borrow items, as they often do on eBay, I am not there to lend somebody my clothes and bags for free, or to ship them around so somebody can take pictures with them, or use me as their try on wardrobe.
It honestly seems that you want the items much much cheaper, straight away, and then return if you don't like them, well, you get that on NetAPorter, FarFetch and a few other companies, it is not much of a problem, but you pay full price. As my granny would have said "You can't have your cake and eat it!"
I totally understand wanting items straight away, that is when I go into a shop and pay full price, for some items I need to do that as I can be a bit difficult to fit. Most tops I have to try on to avoid wardrobe malfunctions, unless I know the particular brand and cut, I won't buy it online. As I said, you have 2 choices, spend less and wait or spend full price and straight away, you have to decide what is right for you.
If you want to be able to exchange and get your money back for an item you spent a lot less than retail, who do you think should pay for that? And why should somebody or a company pay for you changing your mind? Even with certain brands or companies, if you exchange too much, you end up banned from buying their items or the SAs will simply sell to somebody else. Cheap, fast, with all the trimmings and the ability to change your mind that is wanting the moon on a stick or a somebody walking into a Hermes shop, expecting a Birkin in the colour she always wanted, the leather she dreamed off and the hardware the way she wants it, but straight away please, for half the price and if she doesn't like it next year, she can bring it back for another model....