Updates as of today:
I have 3 withdrawals from Jan 9. Status in Cryptopia is "Complete" but nothing in my wallet. I am running the github wallet v4.2.2.0 (latest version).
Here are the people in this thread reporting deposit or withdrawal issues since Jan 1:
Xdragon - deposits not received on cryptopia Jan 3 (page 75)
DuvajBalone - ditto (page 76)
Sash_lav - ditto (page 76)
Mike1983 - ditto (page 76)
nonny12 - withdrawal not received (page 76)
moonstruck - ditto (page 76)
arielbit - ditto Jan 6 (page 79)
worldwide_wes - ditto Jan 9 (page 79)
khage - ditto Jan 10 (page 80)
benbutton - ditto Jan 7 (page 80)
TTE - ditto Jan 10 (page 80)
chiwalfrm - ditto Jan 9 (page 80)
*pendula032 - ditto Jan 11 (page 80)
*ylpkm2 - ditto Jan 11 (page 81) - says missing 10 withdrawals from Jan 11 but one from Jan 12 worked.
*sikosomatik - ditto Jan 8 (page 82)
*moonstruck - deposits missing Jan 15 (page 82)
* = newly added
I just saw all of these posts where people are having issues with Cryptopia withdrawal which lead me to check my withdrawal.
I sent 52 BIS from Cryptopia to my wallet on Jan 08 2018 and haven't received it in my wallet yet.
I checked the block explorer too, nothing there.
I'll issue a support ticket ASAP.