ChacoMen's Chillos Slide Sandal, Varies

For the people that had their sandals break, has Chaco made it right? Has anyone gotten a replacement or refund?

Is there any kind of manufacturer warranty on these? I've had two different pairs of these break after wearing each less than six months.

How do I return a pair for a bigger size?

if i want it to be a bit loose one my and i wear 13 in shoes, what size should i buy?