Hello, Diego!
1. Use the following codes to fix that:
@media (max-width: 767px){
ul.products.columns-3 {
display: flex;
flex-flow: row wrap;
}
.woocommerce ul.columns-3>li {
width: 47%!important;
}
}
2.
You should be able to select your country from the drop-down list. This option works normally for me.
https://prnt.sc/shmekh
Regards