A flat owner in a co-operative housing society is experiencing issues with garbage accumulating on the shop roofs below their first-floor windows. Despite requests to the society management, no action has been taken. The owner believes it's the society's responsibility under their bye-laws to maintain these roofs. Advice suggests escalating the issue to the Registrar of Societies if the society fails to act, and potentially pursuing legal action or a consumer forum complaint for deficiency in service.