Yeah I have had this problem I asked to speak to a manager and they told me the same that I could print them as much as I wanted at home but they could not print them for me as by them printing them it wouldn't fall under the "personal use" terms. I totally did not understand that and ended up bringing in the TOU for the kit I was using and also mentioning that I did it in photoshop and gave the email address and site of the designer I used. I think by giving them all the information they realised that they would have to do extra work so just gave up and handed me over my prints lol
I didn't go back to that place again. I also would recomend Persnickity I have gotten prints form them and they are clear and amazing.
Star x