The backstory
On Monday, I had a quick 15 minute phone interview with a potential employer that seemed to go well. I promptly received another call after the interview stating that the company is interested in holding an in-house interview with me (today).
The woman on the phone had a very thick accent and I politely let her know that I had a hard time understanding her. We scheduled an interview for what I thought was this morning but I wanted to confirm with her - she then told me she would just email me the appointment details. This included her even reading out my own email address to me, which I confirmed as being mine.
I never received any email from the company and assumed that the company had ghosted me (it's happened plenty of times before so I just assumed the worst).
Lo and behold, later on I check my phone (my phone was on silent as I was at my current workplace) and I received a flurry of calls around the time that I believe (?) I was supposed to be interviewed.
The question
Is it worth reaching out to this company to apologize or explain myself?
The job isn't necessarily super important to me - there are some red flags such as questionable Glassdoor reviews, 13 employees after 11 years in business, calling themselves a start up after 11 years, etc. I'm also gainfully employed and in a senior role at my current position (which is why I am considering other options).
At the same time, I don't want to burn bridges and I feel very unprofessional.
Thoughts?
Edit I explicitly stated in my cover letter that I cannot accept phone calls during business hours and prefer to schedule everything over email.