The cost varies, depending on the provider you are with. You can upgrade your fibre in ClientZone and see the cost there.
How to change your Fibre package - https://help.afrihost.com/topic/fibre-broadband/how-to-change-your-fibre-package
If you require further assistance,
please send a message to our WhatsApp helpline: https://whatsapp.afrihost.com
WhatsApp Help is available from 07h00 - 20h00 Monday - Friday
or visit our Help Centre: https://help.afrihost.com/