Sorry to hear about your missing phone. It is easy to do a sim swap.
Please read our article for easy instructions.
How to do a SIM Swap for a mobile SIM card - https://help.afrihost.com/topic/afrihost-mobile/how-to-do-a-sim-swap-for-a-mobile-sim-card
If you require further assistance,
please send a message to our WhatsApp helpline: https://whatsapp.afrihost.com
or visit our Help Centre: https://help.afrihost.com/
or see our FAQ page: http://faq.afrihost.com