"Struggling to contact"

So far my experience with my physio at Holmhurst has been excellent with regular exercises provided in between my appointments and an opportunity to talk through the reasons for my referral and my progress so far. However, when I last saw my physio her future timetables had not been made up, so she gave me a phone number to call to make my next appointment - sadly this number always goes immediately to voicemail and I never get a return call to my voicemail messages, so I really hope someone calls me soon so I don't lose my chance to continue my treatment. I really didn't want to leave a review with this message but I have no other way to contact physio to make my next appointment.