Upgrade/New contract on existing number

Angry Customer! My contract end on 23 August 2025. i upgrade contract on the 04 August for iphone 16. I called Vodacom Customer Service on the 18 August as i did not receive handset and was told that handset was returned to Vodacom because RAM did not find me on the call, i was surprised due to not received any messages that RAM is going to deliver my handset nor call me. so Vodacom Customer Service said they have to cancel contract and someone from upgrading department will call me. i waited for 2 days and no one call me, so i called Vodacom Customer service and i was put through from one department to the other without getting any assistance. on Monday 25th I called Vodacom again and promise that someone will call me and nor one called. Today on the 27 i called again Vodacom and i was told that i cannot able to apply for the new contract due to previous order not cancelled. i really need assistance urgently.