Hello Andrea,
I emailed and phoned you recently to follow up with the recent job application you sent to us. I'm now sending you a follow up email because we're really interested in speaking with you as soon as possible.
Please give me a call at your earliest convenience or reply to this email letting me know the best time to phone you. I have a couple of questions and points I need to clarify; then hopefully we can schedule an interview for you.
We're receiving more applications each day and have begun to interview some candidates, so we'd like to make some decisions about these openings soon.
I hope to hear from you soon!