Vodacom not honouring callback promises.

Thank you Vodacom for pathetic service after creating a great deal for me! Pity you are refusing to supply me with an (copy)invoice that I needed urgently to claim accesories worth R5500. I was sent an sms that invoice was created but then you claim it is not on the system? I will be in touch to collect my R5500 from yourselfs to buy the accesories over the counter. Promised me a call before close of bussiness today(28/03/2019). It is now 22h53 and I am still waiting. Ignoring me will not make the problem disappear.