Bad Communication, They could do better

Sheet Street Online is the worst in terms of communication, bought a couple of items on the 28th, they said delivery time is between 4-7 Days. Still nothing today, also I tried to follow up a couple of times via email, unfortunately that didn't bear any results. Very vague too, the tracking option doesn't really say much.. For instance "Item has left our store" "Ready for shipping", when? I bought a couple of items from this other online store too...got my items 3 days later, with consistent calls and smss from that companys delivery team..also Delivery is free on the other side, they can do better.