How does a Sutterstock subscription work for a buyer?

Question

Copyright

There was a need to download several colored vector icons with a side size of 512px.
Shutterstock (whose ads are everywhere) has what I need, but I have vague doubts.
1) Let's say I'm only interested in one image in this picture:

What is the minimum fee I have to pay to get this picture? Is there a transparent background? It turns out that I will need to cut out the desired image in Photoshop myself?
2) Let's say I need some pictures. One of the different packages. Moreover, I will not download once, but 1-2 icons per week for 2-3 months. How much is it?
3) After I have placed the purchased icon on my website, what will be the confirmation of my rights to use that I have acquired legally and not downloaded from a torrent?

Answer 1

2) there are 25 per day, but $250 per month must be paid, look or by the piece (where the same 250 or so for a year) or other stocks, the same Dreamstime is cheaper and with a large library
1) there is in jpeg, the background is as lucky, white probably, but you can cut it, but there is in the vector, everything is possible there, but the vector is a little more expensive, although it seems you can download the vector by subscription
3) the fact of purchase, transaction and statement in your name in the admin panel, I don’t know how in the Tent , in the deposit, they give a piece of paper with the number of the picture and a seal to download even
if it is badly needed
without a piece of paper, it’s easier to buy on VKontakte from resellers, or download from the same deposit for free any
the worst thing in all stocks, except for Envato, is the murky sublicensing rules (this is when you buy for a customer), I studied all these texts at one time. If it’s simple - you need to buy the customer and give it to the contractor, on the contrary - it’s kind of forbidden, because everyone except Envato is smart-assed, and it’s not a sin, when you can, to use them without a license