Frustrating experience with VFS Global

I made payment for a visa application two and half months ago. Up to now the payment has not yet been allocated for payment. I have sent numerous emails and called the VFS Global South Africa many many times but nothing has changed. I am now stuck because without the payment allocation I cannot book for an appointment. I have given up on sending emails because not even one of my emails was responded to. Calling is not helping either because I am simply told that the payment allocation team will allocate the payment.