If a domain has been cancelled, it can not be resumed.
However, if it is still available to be registered and has not been registered by someone else you can register the domain and own it again.
Search for the domain here - https://www.afrihost.com/site/product/domain_registration
How to register a domain name - https://help.afrihost.com/topic/domains-and-hosting/how-to-register-a-domain-name
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/