This depends on the terms and conditions stipulated in the purchase of your L930. However, since you brought your phone to a service center, chances are they will not replace your phone with a new one. Phone replacements are usually possible when you bring the product back to the store where you got it within the product replacement period warranty of the store.
I just got my L1020 from the service center (it was under warranty when I gave it to them) and I had to wait for exactly three months (90 days), but that's because they took a long time to find a replacement part for my phone. Your L930 is newer and parts may be more readily available than my phone.
Nonetheless, here are some of the things you can do:
1. You may call your service center up for a follow if you want - this is what I did almost every weeks.
2. You may contact their official Twitter handle and inquire for updates and for other queries:
@LumiaHelp. In my case, when I asked them the same question on phone replacement rather than repair (since I've been kept waiting for so long, their response was that the replacement of the phone depends on the assessment of their technicians.