Promises 50 free jumbo prints, but code expires

Q-photo ran a promotion where you can claim 50 free jumbo prints every month for 12 months if you register in June 2015. I have done so, but this month (when trying to claim my 50 free jumbo prints for July) the voucher code does not work anymore. A number of people have reported the same. <br> <br> I have tried to contact Q-photo, yet they remain dead-silent not replying to my mail.<br> <br> Qphoto, please keep to your work and supply us the new voucher for July (or make the old voucher code valid again) so that we may claim what was promised to us.