I can not wait for the confirmation letter. how do I unsubscribe from this site

how do I unsubscribe from this site, 

If I have to wait three weeks for the letter, my summer will end 
and it will not make sense to wait to work with booking.


Please unsubscribe from Genius, I unfortunately pushed the wrong key. I would appreciate your kind assistance. The reason is that the rate is to low.

Thanking you in advance.

Kind regards,