Reusable nappies free trials in Greenwich?

I was interested in trying reusable nappies but the initial investment is putting me off buying them in case I don’t like them! I read some councils offer free reusable nappy samples, but Greenwich doesn’t seem to be one of them. Does anyone know of any other ways I can try reusable nappies without needing to buy them? I’ve read some children’s centres let you borrow some to try, but not sure if Greenwich has any children’s centres that do? TIA