bad quality sebagos

I purchased a sebago from men's shoe centre about June last year..I use the shoe about 2 times a week...In November 1 of the laces snapped while I was tyng the shoe...I've been using sebagos for the past 15 years and not once did that happen to me...They picked up the shoe in November 2015..I had to phne them today and now they want to replace the shoe lace and send it to me...I want a new shoe as 1 of the reps by the name of Carl told me it was a reject lace on the shoe...so it can also be a reject shoe...I wil never advise anyone to buy a sebago from men's shoe centre as the quality is terrible.