I might contact her, get the contact info for 'them', and continue the practice. I'd also ask if they urged her to get a new one. That way if they try to sell you one you can respond with, "Well, it didn't need replacement last year and nothing's changed." and dump them.
I'm with Gusherb. I'd keep the contact info for a lightning fast, instant replacement service and make sure I had the funds for replacement available. Then I'd keep it to see how long it lasts.
Jim