Interesting coments, that mirror my experiences!
Had them for a year, used them a lot, no real leak issues, then took them to Npal for a trek in Langtang in April. Toward the end of trek noiced that both heels had split accross the heel in the tread.Not somehere you would expect to se that type of failure.
looked on the Salomon web site, no obvious place to email, but sent something to marketing in France - no reply.
Then took them back to Nevisport in York, where purchased, expecting poor customer service ....., surprisingly no problem, ofered to wxchange them, but didnt have my size, so full cash refund.... not bad for a years use I did notice that the sole unit design had ben changed, so maybe a fault.
Pity really as I did like the boot, would I buy again.... based on experience probably not.
Take them back to where you purchased them.