I have not had a problem with not being able to redo it. They usually ask me to add the information.
I have never seen a cruise shop. Sounds interesting.
usually you do not have to purchase something, but it might depend on the client you work for
I personally think cancelling a request( not an actual sign-up) shouldn’t lead to losing points because then someone else has the chance to get the shop.
My hardest one was finding the prices for $150 items at Walmart automotive. Supposed to take a picture of anything that was outside the expected price range. I wasn’t able to complete; for one reason it was next to impossible to be discreet, and many items were behind a locked glass cabinet with the prices hidden. I have read in the forum that some people do these shops with their spouses. This one really needed to be split into shorter shops.