VFS Global - extremely poor service for extremely high costs

I am trying to assist one of our staff who has a ZEP and needs to convert to a General Work Visa. The first step is to apply for a Waiver, which is what I am trying to do. When loading the details, the system kept dropping me and I must have entered my username and password at least 50 times before I achieved success. Now I am trying to book an appointment with VFS, which is the next step. Before payment, the system told me that there were available appointments on the 3rd, 4th and 7th April (but you cannot book until paid). After payment I went in to book the appointment and there is not a single "green square" (available appointment) shown for the rest of the year.) When I queried this, I was told that they only open the appointments for the month on the first day of the month! Most people applying probably have jobs and need to be able to plan their lives, they cannot simply drop everything for VFS. I feel this is extremely poor customer service, the worst being that I cannot use another supplier as VFS is the only company appointed by the Department of Home Affairs. In addition to this, the VFS cost is R1550 for this "service"!!