Hi please help me with this question in terms of South African Law

Question 3 Ngoni aged 32 and his girlfriend, Thembi aged 17 want to get married. Thembi lives in their hometown of Pretoria with her father (the mother passed away when Thembi was 12 years of age) and Ngoni worked in Johannesburg. The representative fathers, of Ngoni and Thembi respectively, concluded an agreement in terms of which Ngoni had to deliver seventeen head of cattle and R30 000 as lobolo to Thembi's family. Ngoni delivered the lobolo as agreed upon. Shortly thereafter Thembi , is given permission to live with Ngoni. Apply the requirements for a valid customary marriage in terms of the Recognition of Customary Marriages Act 120 of 1998 to the facts. Your answer must include a discussion of: Capacity of the spouses; Consent of the parties; The requirements for a valid customary marriage; and Whether or not the marriage between Ngoni and Thembi there is a valid customary marriage