Vodacom - 6 months no service and R5000 payment without having a phone

Complaint on fixing "moisture detected" on phone. Handed in Note 8 phone @Standerton Vodacom 13 April 2019. Service feedback very poor and no guidenace on why phone is still not fixed 6 months later. Case number was ***8. Personally followed up on 21 July and 29 August with still no answer and phone sent back with no notification or calling to collect. Phone still not fixed. As I had no phone for 6 months and still paying contract fee, feels unfair.