Should I sack off the dog class?

Ok I’m sure you can improvise with some of those things, and the rest you could grab from any supermarket or pet store in 5 mins.

The bed will be because each pup needs something familiar as their safe space to rest in between their turn. A blanket would be fine.

A lead and collar are easy to get - I’m guessing they have said non retractable lead, you should get one of these anyway as retractable leads teach dogs that pulling on the lead is ok as there is a constant pulling sensation with them.

Do you have an old cuddly toy of some kind? That would be fine. Squeaky ones will distract the other dogs when it’s not their turn.

Some small bits of chicken/ham would be perfect treats.

Bit crap they’ve dropped it on you last minute but I reckon you could quite easily rustle up what you need, and they’re not going to turn you away if you can’t get everything before tomorrow, they’ll just say you need it for next time.

Just go with as much off the list as you can you won't be the only one without the full list. You can use a blanket as a dog bed. Take the lead you have and harness. They advise a collar over harness so you're not relied on the harness to pull them on. The treat you just need a high reward treat so they are likely to follow your commands. We used meat and sausages. Any random cuddly toy counts as a non squeaky toy really. This is the standard list from one of the dog training schemes and we did their puppy class too. Lots of people had all sorts week one and worked it out as they went along. It was a really good start for us

Just go with what you have. See how the class feels. If they are very rigid and make you feel bad then don’t go back. You may well find that they are flexible or have spares of things you can borrow.

I'd go and see what it's all about without the stuff. Explain you got the message late. Most trainers will have spares of everything. Even if the message was out in time, there's always someone who forgets.