***** - Uknown upgrade on contract - Being Billed every months without the device

I took a cellphone contract with Vodacom in 2015, Huawei P8 Lite to be exact. The contract ended this year October and an ******* upgrade without my authorization was processed and item claimed to be delivered. I logged a ***** complaint with vodacom on the 3rd of November and even today im still waiting for someone to assist me. They are debiting every months for a device i do not have. I am very disappointed with the way vodacom handle their customers.