Same boat. Received P1 on Oct 3 forwarded by the representative. Waiting on P2. I guess it should be ok as long as you send to the correct email address.
P1 - Oct 3, replied Oct 4
Waiting for P2
saw many people here have the same timeline as mine.
I'm using a representative so I don't have the original email. I sent out a new mail to the portal address, dunno know if it would affect my timeline.