"Impossible to talk to anyone"

Having changed their appointment booking process again I was eventually liked to the Anima app - however there were no appointments available and was directed to log back in "at later times and dates" shown in the app. Tried that 4 times, no luck. On the 5th time I did manage to open the link and followed numerous irrelevant questions until eventually it said "your request has been submitted" I then heard nothing for some time. I then received an appointment at a location and time that are not convenient from a "do not reply" number. I tried calling to change but no response and all calls were cut off. This service is poor and unacceptable. he app shows as me having no appointments so cannot change on their either.