When a 4 tier wedding cake on pillars collapses 7 hours after the cake supplier set it up who is responsible. The venue, at our request added a flimsy foil topper 6 hours before the collapse. The bottom tier was sponge, the next fruit, the next sponge and the top was polystyrene. The cake had dowels running through the columns. Unknown to us the venue had queried the stability of the cake with the supplier before they left and the supplier confirmed it was stable. Neither party were aware we had a topper at this stage. The venue are saying the fruit cake was too heavy as a second tier and the columns weren't cut square when they looked at them later but I thought it was actually the rods which do the work. The supplier is saying it was the force used to place the topper in the polystyrene tier which caused the collapse even though this happened 6 hours later. Just wondered if anyone has any thoughts on this?