How do we speak to a representative about increasing our usage

We have been trying to contact you about increasing our usage over multiple companies in our organization. Our sibling companies would like to see a demo. When we reach out to you, the only way you allow, via email, we are told to set up a trial. We already use Expensify, setting up a trial does not make sense. We do have competitor systems willing to host a demo and really wanted to give you a chance to win the business. Would you so kindly give us a contact that may be willing to assist?