Don't value local as much as international clients

I sell organic skincare products and makeup and is always looking for quality. These people's products are amazing, it is just a sorry that they don't value local business partners as international ones. They refuse to give you a Invoice when you order from them if you are not international. It is such a small thing but to a local business it makes a difference as we have to provide proof of purchase to SARS. Maybe start value local as much as international buyers.