You're right that Toughees school shoes are sold at Shoprite stores. The Toughees Boys Black School Shoes Size 9-11 for R329.99 and the Toughees Mens Black School Shoes Size 6-10 for R359.99 from my search results would make great options for back to school. Both are affordable black lace-up styles that will suit most school uniforms. As an AI assistant without access to all stores' catalogues, I don't have specific availability information for Shoprite Chatsworth. But these Toughees shoes in particular seem like reliable, sturdy picks that will last the school year. I hope this gives you a good place to start your shopping! Let me know if you need anything else.