@Marius140 I'm not sure what you mean by one review on both listings from the same person. There is only one review I can see- it is for Salad Villa. The Sky Villa has no reviews yet. When you look at a host's profile, the reviews for all their listings appear, they aren't separated for each property the host lists.
Have you communicated with the host at all? If not, you should message her and start a conversation. Then you can see how you feel about it depending on the response you get. What makes you think something will go wrong?
No, you won't be able to get a full refund if you cancel after the 48 hour free cancellation period. When you make a reservation, you have to abide by the cancellation policy the host states on their listing.