In everyday conversation people use "quote", "offer" and "pre-approval" interchangeably, but the National Credit Act draws a sharper line. Before entering into an intermediate or large credit agreement – broadly, anything above R15 000 – a registered credit provider must give you a pre-agreement statement and a quotation in the prescribed form. The pre-agreement statement is a plain summary of the terms being offered to you. The quotation is the pricing: the rand-and-cent detail of what that credit will cost. In practice lenders issue the two together on one document, and that is the document to ask for by name.
A quotation is more than an indication. Once it has been issued, section 92 binds the credit provider to those terms for five business days, so a lender cannot quote you 19% on the Monday and reprice it to 24% on the Thursday because a bureau score refreshed. A quotation is also issued after the lender has completed its affordability assessment, which is why it normally arrives only once you have submitted payslips or three months of bank statements. That is what makes it a real, actionable offer rather than a marketing number – and what separates it from the "from 15% a year" line in an advert.
What a quotation does not do is commit you. You can request several, sit with them, and accept none of them; nothing is binding on you until you sign. The one cost worth knowing about is that a formal application involves a credit bureau enquiry, and a cluster of enquiries spread over months can read badly to the next lender assessing you. The practical answer is to gather your quotations inside a tight window rather than drifting through one application a month for half a year.