Module Shipping cost depending on the amount of the order on Opencart 3.x. You will be able to set correspondences "up to order amount" : "delivery cost" for different geofences in the module settings.
Installation instructions:
Upload the module via Install modules in the admin panelGo to Modules > Modules > Delivery and install the "Delivery depending on the order amount" moduleEdit it, turn on Status, add correspondence between order amounts and delivery costs for regions.