6 Weeks and complaint not resolved to date

I send a complaint on 4 December 2020. I was contact and advised that I will receive a voucher within 2 days. On 28 December 2020 I sent another email as I did not receive any voucher. I received a response on 2 January 2021 from Zara Kelderman stating that I will receive the voucher in the upcoming week. Today is 19 January 2021 and STILL NO VOUCHER. Your service and quality of food has really dropped in the last year. POOR SERVICE WOOLWORTHS!!