wow aqueon customer service is bad

So I have a 220 gallon tank I got as a gift a few years ago, the tank started leaking. I broke it down called marineland (that's the brand I prefer) they were super helpful were going to replace the tank, just needed makers mark. Makers mark showed it was an aqueon tank. Called aqueon the said they have a lifetime warranty as well. Makers mark checked out it was verified their tank verified leak was manufactur defect, won't cover tank because I dont have a receipt. How shady. Worst customer service. They did see manfactur defect but still won't honor their "magnificent" lifetime warranty. So make sure you guys are buying marineland where they stand by their products.