Horrific quest to get a simple flu shot

Horrific trying to get a flu shot. Plumstead Dischem took my name last Wed and promised to call when they have vaccine but haven't responded. Second one in Claremont had but were fully booked (on Saturday) and referred me to the 086111 number or to drive back on Monday to check. Then the person on the 086 number said she would try and after 6 and a half minutes of music I ran out of airtime not know what she was doing. Online book doesn't allow for flu shots