My reservations are too cheap.

I am new here. The plattaform is really confusing and you guys dont´have a phone number or a chat. Had I known this, I would not have listed my property. Please help me change my price. Or please explain why my price is BRL 120 and for a five-day reservation I am getting only BRL 420. For another reservation I am getting only BRL 250 for a three-day booking. Why if I have listed my property for BRL 120? For the meantime, I decided to block my calendar, which I hope I managed to. Please help.

Thanks.