I had the same issue via phone but then contacted them on Facebook and had quick responses.
They were working on opening the pool last time I was there 2 months ago. It is supposed to be open and the price is around 20 per day. They have people come and go all day and into the evening. It usually closes at 6. Keep trying, it is a small family run business and people are only in the office every once in a while.
Thanks! Your answer is awaiting moderation.