First, stay calm and keep people and pets away from the area where the bees are until the issue is taken care of.
Next, reach out to us and describe the details of the beehive. We will ask you if you see the actual beehive, what the bees look like and where they are entering into.
If its possible to snap a photo of the bees and send it to us , that would make it easer to asses the situation.