WebAfrica - I haven't even started and I wish I never did

I recently moved to WebAfrica and the contract was to start 01/01/2023. Somehow they managed to change my line mid December and promptly debited my account which they say is a prorata amount - this was never disclosed to me. I also rejected their router at sales stage as I have my own in place yet they delivered one anyway. Due to my boyfriend experience being dismal and shocking, I decided to cancel before I officially started with them. They advised that I need to give a calendar notice from 01/01/2023. I find this absolutely laughable as my contract states the start date at 01/01/2023 so how can I cancel something that hasn't even started. They continued their stronghold over me by demanding that I return their router or they will charge me for this as well. There is not a single manager that you can speak to. They hide behind the poor sales staff who have been ordered not to transfer any calls or give out any names to clients. Their BOT is how you raise complaints and yet they take 24-48 working hours to respond - let alone resolve. Retentions is an absolute JOKE! Other than bullying you and enforcing their T&C's; you kind of just accept what they say and wish for the end of your term to come as quickly as possible so that you never have to deal with such sharks again. This has been most frustrating