Why are schools so ungrateful ? you would think that every little bit would help right?

My sons school were holding a recycled paper scrap project, the idea was that they could collect paper and do paper mache decorations, nice idea right? well in my house we are fairly illiterate and don't encourage reading as we believe that it is basically over rated so were unable to provide little Tommy.... then it hit me !! we could help... for weeks i refused to allow anyone in the household to flush good toilet paper down the pan, we tirelessly collected the used paper in a dustbin by the door, transferring to a black bag in a dry place for storage, it was hard..... the smell was hard to get used to at first but for little Tommys school we managed and persevered through everything. We just knew we had to help. On the day that we delivered it to the school we were so proud to see all the children walking in with their offerings , Little Tommys offering was by far the biggest !! We watched him as he walked through the doors turning one last time to wave... we were the happiest parents ever... at last we could show the school how much we were willing to make an effort in return for their tireless teaching off Tommy. However, just thirty minutes later the school phoned me, i could hear Tommy in the background crying and they asked me if i could pick up both Tommy and the unwanted paper. Tommy was awful upset that they didn't want his contribution and i feel like they are picking him out from the other children... should i make a complaint?