Some would end up being wasted if that happened, unless there was a chance that they could be returned to the seller or store to get the money back or to trade for something else.
If such things happened, then it would not only be a waste of money for Ash, but it would be a waste of her time.
She was already being kept busy with so many things, so she had little time to spare on such smaller matters unless they became a big problem for her, which needed solving immediately.
If she did not have time available to go back out to return something that clearly did not work for the purpose it was purchased for, then she would have to wait until the next time that she would be out shopping so that she could try to return it.
If there was any damage suffered during that time or anything else that broke the purchasing clauses meant to prevent returns or trades, then that would make things just as problematic.
