Lesotho Swaziland and Namibia are highly dependent on South Africa?

That statement isn't entirely true. While it's correct that Lesotho and Swaziland have close economic and political ties with South Africa, forming part of the Southern African Customs Union (SACU), Namibia is not heavily reliant on South Africa. Although Namibia is a member of SACU, it has a more diversified economy and a broader range of trading partners.