Your downspouts are most likely to get damaged at some point. They get stepped on, ran over, or have objects ( kids, toys, etc) banged against them. Expanding ice sometimes splits the elbows. Strong winds or heavy ice loads can rip them down.
That's why we offer the ACM Gutter Plus Extended Warranty tm,
offered only through our Elite Rainware Contractor program. If you have damaged downspout parts, well ship them to you for free of charge. Replacement parts will be sent directly to your home. (Homeowner is responsible for installing replacement parts.) Just call 608-365-0296 and ask customer service to file a claim for replacement part.