I think you are Ok!
I think you are all set! - Most of these places like to be paid in Cash (pesos) upon checkout. I am sure that you have a room. You may want to call them or email them to confirm but you should be alright.
If you have a problem, there are many other hotels and guest houses in the nearby area that will be glad to take your business.
If you want me to recommend a low cost place, let me know
DAKRA