I don't know which ads/rescue you're refering to so I'm just going by what's posted here.
If they buy babies and then sell them on they would need a pet shop licence.
If they buy a rabbit and breed from it then sell the babies that's just breeding. However there is a difference between breeding as a hobby (e.g. breeding to show and selling excess stock) and breeding commercially (e.g. breeding to sell). If they do the second then they would need to be registered as a business/trader to pay tax and there could be planning issues.
Tamsin
If they buy babies and then sell them on they would need a pet shop licence.
If they buy a rabbit and breed from it then sell the babies that's just breeding. However there is a difference between breeding as a hobby (e.g. breeding to show and selling excess stock) and breeding commercially (e.g. breeding to sell). If they do the second then they would need to be registered as a business/trader to pay tax and there could be planning issues.
Tamsin