B737 Captain reported the ramp crew wanted to remove DG due to concerns that it was not properly sealed; but the flight crew was unsure of the procedures for a load change. Ultimately; the flight crew had the dangerous goods removed and ensured there was no spillage in the cargo department before departing.

Narrative

While parked at the gate at the end of the cargo loading process; one of the ramp crew members called the flight deck to inform us that they were removing the Dangerous Goods (DG); dry ice. He wasn't immediately sure why; but eventually he reported that the DG was removed over concern that the packaging was not properly sealed and looked wet; indicating the possibility of a leak. I reviewed the guidance in the FOM for a Dangerous Goods Load Change; which stated to contact Cargo Support; Operations; and Load Planning in that order. I called Cargo Support but the connection was so poor that I was unable to have a productive discussion with the agent. The First Officer and I discussed the situation with both the ramp crew and Operations; and I asked the ramp crew to verify that nothing had spilled or leaked in the cargo compartment. Both Operations and the ramp crew confirmed that all DG were removed from the aircraft and that there was no spillage or residue left over in the cargo compartment. We also confirmed with Load Planning that there were no DG onboard anymore. After that was done; I called the Chief Pilot to discuss the situation and to see if they could think of anything else that we should do before departing. The Chief Pilot agreed that we were OK to proceed. We departed and completed the flight without incident.