I understand your urgency in resolving this issue. Are you able to tell me what country you are located in? I can provide you with payment gateways available in your country for you to use and integrate into your Shopify store.
We have available payment providers for you in Botswana. Shopify has partnered with leading international payment providers to support your sales efforts. Your customers will be able to pay in their local currency using their preferred payment method. I recommend reading through our list of third-party gateways available to you and choosing one that best suits your business needs. These gateways all directly integrate with Shopify, so once you have set up your account with them, you can connect it to your store and start receiving payments from your customers.
Please let me know if you have any further questions!