When I went into local wilkinsons newcastle store. I saw a deal of
1 x 30ltr 2 x 5ltr
But I could not find this deal online. It seems like in-store only. I am attaching a sample picture of only 3ltr bin.
I bought a 30ltr one from ASDA recently for £12, but getting 30ltr + 2 x 5ltr bins for £15 is bargain price i guess.