PCI-DSS is the security standard the card networks require of anyone who stores, processes or transmits cardholder data. It has tiers, and Level 1 is the most demanding — reserved for the highest transaction volumes and involving the most thorough, independently audited controls.
The practical benefit for a small business is delegation. When you accept payment through a processor that holds PCI-DSS Level 1, the card data flows through that processor's certified environment. You never touch or store raw card numbers, so you inherit a strong security posture without running Level 1 controls yourself.
KAZI processes payments through Paystack. The PCI-DSS certification belongs to Paystack as the processor, not to KAZI — which is precisely the point: the processor carries the certification so the merchant does not have to handle raw card data.