Not respecting address entered

My town in the USA does not have typical US Postal Service delivery. If my address is entered a certain way, it can work for USPS, UPS, and FedEx. However, Shopify (or ShopPay?) occasionally just takes out parts of the address I enter at check out prior to delivery. This creates a headache for the seller and me when the package is shipped USPS. I don’t see anyway I can communicate to Shopify that they are repeatedly messing up my address. I think this means I just need to avoid shops that use Shopify.

(edit: added Shop Pay because I don’t understand the difference)