well, @Carolina-Alejandra3 you wrote a post, commented x times but you still didn't say a few important facts:
- what cancelation policy does your host have?
- how long before check-in you have booked and canceled?
- was it a short or long-term (28 nights or more) reservation?
You either have no idea or you think this is not relevant or you hide this information because you know you are not right. Either way, it seems to me you are one of those guests who book without reading anything and then complain because they didn't get what they assumed they will.
Hosts before me gave you the link where you can check all policies and what refund you can expect in case of cancelation. Read it so you don't make twice the same mistake.