litter training gone wrong

[manyhands]

We've got two lovely kittens, who came to us fully litter trained and they almost never had an 'accident'. In fact they were happy to go outside rather than the litter tray which suits us fine. But we went away on holiday and put them in a cattery and they seem to have forgotten how to use the litter tray and are pooing all over the house. They are both girls if that makes any difference. Any advice?

Confine them to one room with a tray each.

When you are at home watch for the circeling behaviour and get them in a tray asap.

They might be a bit upset at being in a cattery.

Thanks for the ideas.