To be more precise, I collected the Sweet Dreams freebie once in order number 100015360, and because I forgot, I collected it again in order 100022774.
My point is that the new system does not tell me I already have that item, unlike the old system.
Conclusion: the new system does not tell me I already have an item from an earlier order.
Implication: I may buy the same item more than once, and then it becomes troublesome to report and request for store credit. (Since my current example involves a zero price item, I am only extrapolating the consequence in teh case of a paid item.)