No, under normal operation, you don't need to send proof of payment to either of us.
PayFast's system confirms that the funds have actually been received so there is normally no need for an email or a fax from the bank as further confirmation.
If an error occurs during payment, however, we may ask you to send us proof of payment. This could happen if you perhaps made use of the incorrect reference when paying or if there is a delay in the payment reaching us from the bank. In such cases, we need to review the proof of payment to resolve the matter as promptly as possible.