Worst Service

I paid for my children's stationary on the 04/11/2017 and sent them proof of payment, went to pick up my stationary at the school (GWP), I was told its not there but they will make sure its delivered to my house and they asked for my details. I sent follow up emails but there was never a response, yesterday 15/01/2018 I go back to the school for the stationary, I only get one Grade 3 box with 3 items not there, my Grade 6 box is nowhere and yet I paid for these on the same day. They are promising me that it will be there today, my question is how many items will not be there. I want a refund of the Grade 3 items not in the box so I can go buy them rather. I am very worried that I will get there today and there will not be a stationary box for my Grade 6 child. I am highly disappointed with Waltons and I will never ever use their services again.