I was told previously (not WRM specific) that shares of the same...

I was told previously (not WRM specific) that shares of the same company purchased on one exchange could be sold on another exchange listing the same shares. Biggest reason is the broker commission for the ASX are about 20X to 40X the commission on the OTC for the trades I am making. Huge difference. And due to COVID I cannot talk to a broker live while the ASX is open and adjust my trades, such as move the bid up a bit.