Hey @BakerJ217,
Sorry to hear about this. That penalty will kick in if you leave a ranked match whether that's due to a disconnection or choosing to leave the game early.
The RP loss can definitely be pretty impactful this season in particular, though I'm afraid that is not something that can be returned.
If this is happening on a regular basis, I would definitely suggest going through these connection troubleshooting steps to see if there's any improvement afterwards.