Account is not closed. Woolworths insists it is.

Woolworths has done nothing but treat me like I am an idiot. An account I closed is showing up on Experian as open. Woolies app is also showing as open and they continue to issue monthly statements. The balance in currently sitting at R0.03. How can a closed account continue to issue statements? When I engage them their answer is "this account is closed" non of my questions are addressed.