Poor costumer service at Sorbet Menlyn

I am highly unsatisfied with Sorbet Menlyn’s service. I’ve been a costumer since 2015, where I go for treatments on a monthly basis, but after yesterday I doubt it whether I will go back for any form of treatment. I phoned yesterday to book an appointment for a pedicure for 16:30 where the lady asked me if it will be possible for me to come around at 16:15 rather. I left work earlier just to be in time. Upon arrival I was acknowledged by the receptionist and she said I should have a seat at the pedicure station area someone will be attending to me soon. Around 16:35 I decided to leave since everyone was ignoring me and I was left unattended. I left 16:37 without anyone asking me a question for my reason for leaving. I then received a call from Sorbet Menlyn at 16:43 but decided not to answer because I was very upset. I think this is very bad client service, actually non existent client service. How can anyone be treated in this regard???