DoseSpot interview questions

I interviewed for two different positions at Dosespot. In total, I went through about six interviews and I thought they went well. For each interview, they informed me that they would let me know their decision in about a week. I never heard anything from them again. I emailed the recruiter several times and no one ever responded. In my opinion, this is very unprofessional behavior. If I didn’t get the job, I completely understand. However, getting ghosted after going through six interviews and investing a lot of time, to only get ignored by the recruiter and not even have the common courtesy of letting me know that I didn’t get the job is not right.