Oil drippim off air con pump

I have oil drippin off the air con pump on my glanza starlet. We have changed a cam seal and chafed the sump seal. After the the sump seal was changed the car was left to run for two hours and no leaks but once i drove it home and looked under the car in the mornin there was a fresh oil puddle. The oil only drips off the air con pump . Any ideas wat could be wronf and where it is comin from? Sump is completely dry checked seal on oil filter as well all good