Struggling to get money back

I booked the overnight spa package, but by the time I checked into my room, the wedding that was being hosted (which I was not informed of) was in full swing. The music was so loud that I could hear it over my TV and aircon and I decided to check out as I was not going to spend an evening in a five-star lodge listening to noise!! The staff assured me that I would be contacted the following Monday regarding my refund. I have contacted them on several occasions, but have only heard empty promises. As I was not informed that they would be hosting a wedding and could not offer me the peace and quiet they promise, they should refund me for the accommodation I did not make use of!! I also did not have any dinner or breakfast.