What’s the best way to check the status of an application?

I’ve been in office work for a few years. I thought it was what I wanted to do but it was really because I thought it was the safe route. Here I am graduating with an MBA soon paid by work but I have no desire to “climb the corporate ladder”. I’ve been thinking a long time how to get out and decided to explore my love of working with dogs.

Initially I was going to volunteer at the shelter part time to see how it goes. A former high school classmate is the head dog trainer at a large well known business nationally contacted me about a part time position since she knew I loved dogs. She asked if I was interested, my schedule is perfect for it, and no experience is needed. She told me to apply by sending a cover letter and email to the manager and I did.

It’s been over a week and I did not get any response, not even a receipt of acknowledgment. I called the place but it goes to voicemail, I’m assuming because they train dogs they only return calls. I’m afraid to leave a message only to not get an answer back. However, they’re very active on Facebook, I don’t know if it would be weird to message and ask through social media? I just want to know when they plan on filling or interviewing, see if I’m even being considered. I don’t want to bother my old hs mate with my questions. I just know they haven’t advertised the position so it’s not like they have a ton of resumes coming through.