Poor service from Printstagram

I bought some Groupon vouchers for products on Printstagram. However, dealing with the website has been a nightmare. You can only redeem the vouchers in one transaction at a time, and then when you do that, it essentially forces you to pay a delivery fee of R79 for each product, even though all 5 would go to the same address.<br> <br> On their website there is a space to leave a message. I left 2 messages, to no avail. At one point on 7 January I did actually get through to the number on their website, and hallelujah, they did help me. However, as soon as I put the phone down, a new problem arose. Since then I have tried calling that number 10 times, and it just keeps being engaged. This is VERY frustrating, and is just poor service on their side.