Our local association sells them for £22.50 for a box of 72 with gold lids. They are still doing this despite Covid-19. You have to contact them to arrange collection and pay for them online. But they have been very good in the past. Maybe try your local club....
The bees will be returning to the area as it will still smell of the queen and her pheromones. We try to "wash" the area where a swarm settled after we have collected a swarm to encourage the stragglers to dissipate more quickly.
We had one swarm land on an apple tree in our garden and after...
