Pathetic service

I made a follow up appointment for my son on the 3rd June I was called 2nd and told by clinic reception that no Dis-Chem had stock and she would call following week to reschedule when they have stock ....it's two weeks later and Dis-Chem canal walk has not called .I spoke to Sam who advised clinic has already left at 5:30 . I'm disgusted and annoyed that promises are not fulfilled to reschedule my son's appointment