Irvine-based billing and payments software startup Chargezoom has raised $2M in a seed funding round, the company said on Wednesday. The funding was led by Okapi Venture Capital and also included Saas Ventures. Chargezoom develops a software platform that helps businesses automate accounts receivable, billing, and payments. The startup is led by CEO Matt Dubois. Chargezoom said the new funding will go to continue scaling its product and team.