Spa Utopia - extremely bad customer service.

I received a spa voucher for Mother's Day at Spa Utopia and booked a date, but unfortunately I could not make it one time and tried to reschedule for another date. It was a struggle to speak to someone. I had to whatsap them continuously just to see whether they have change the date etc. I was supposed to have a spa massage on 21 June and messaged them that morning to request for directions. Only then did they tell me that they are moving! Would it not be decent to let clients know that they are moving and propose an alternative date? I asked them to let me know once they are settled and that was last week and they have not had the decency to return any messages!!