you can route your order through different MMs. you are using a low end broker who can't do that.
this is one of the reasons why many people are wrong about VNDM, VFIN, etc and because of this information, other people took advantage of it and use VFIN, VNDM to scare people into selling
Disclaimer: Everything expressed here is my opinion.
Never base on my opinion to buy, sell, and/or hold a security