I want/need a better phone but not go to another carrier to do it.
I have had a Moto 3G 3rd gen which has more than its share of quirks. Does Republic offer a discounted upgrade after 1 year?
Republic does not offer discounts for upgrading one’s phone. Republic does have some phones on sale or scheduled to go on sale: https://pwk.republicwireless.com/go-moto.
Have you attempted troubleshooting the issues with your G3?