Regretting my decision to go with Mweb!

I have placed an order for fibre on the 12th of November. To date I have not heard anything from the fibre provider nor received an installation date. Now it has come to my attention that no installations will be done till mid January. So how long will I still have to wait for the installation to take place? In the meantime we are stuck without internet. It is impossible to contact Mweb without calling the call centre. No e-mail contact on their website and the help centre is permanently off line. I would like to cancel my order so that I can make other arrangements.