Rufusal to exchange faulty product

My daughter was given a gift, clearly branded as Toys R Us. The very first time we set it up it broke. The next day I took it to said retailer and told them it broke after barely one use. I said I would be happy to exchange it for something else and was not looking for my cash back. They then politely asked me for my slip, and in return I politely told them it was a gift and I wasn't given a gift receipt along with it. The people who gifted it are overseas, so I cannot bother them for a slip... Anyway, they point blank refused to allow me to return the broken item without a receipt, even though their product was faulty. Needless to say, I'm most unimpressed with their illogical returns policy, and unwillingness to accommodate me, when it was their poor quality product which was at fault!