I have Namibia set up in my store as a second location and shipping fees have been correctly setup but yet when customers try to check out, it doesn't give Namibia as a country option, only South Africa. This is costly to my store. PLEASE HELP
Did you set everything up correctly?
If everything is correct and it still doesn't work well, I suggest you to contact Shopify directly, they will help you to check it in detail. Refer https://help.shopify.com/en/questions#/contact
Hope it helps!
If you have contacted Shopify and still have the same error, it will be really hard for someone else to debug it for you. I recommend you contact them again and describe everything in detail.
Hope it helps! If it helped you solve your issue, please mark it as a solution. Thank you and good luck.