Pocket Gems Software Engineer, Backend interview questions

Applied online, They asked me to set up interview dates and time. Once I sent the dates, the recruiter did not respond. I had applied on career page as well as on angel list. Apparently they had rejected me because of my online application and had selected me for the interview because of my application on Angel list. I had to send multiple mails to request status and finally they told me they cannot go through the interview. Something similar had happened before as well, when I was selected for the interview process from a coding competition (where pocket gems itself out the blue contacted me for an interview) and later not interviewed. Back then i thought they might have had some reason. But now I figured that their recruiting process is flawed, after reading multiple reviews on Glassdoor. The recruiters don't bother responding to the candidates queries. they reply till you are in the game and don't bother later. I have gone through multiple interviews, even recruiters at Google, such a big company, make sure the candidates are updated regularly and courteously. I really liked Pocket Gems, but after this experience, I don't want to be mistreated like this anymore by this company. So, I would not bother applying unless they have better recruiting standards.