i'll jump in as well. I have ordered from QSC, ASC, Amolist/Amopure/Guns-n-Amo (or whatever they are called these days) and others.
Once the shipping labels is created it can take a few days to get updates, and don't be surprised if things just sit for several days with no updates, or you seem to get an update that says it was received by X, departed X facility but then just sits. It will move. I am learning to be more patient. Also, depending on who the vendor may use for shipping, that can also affect things.
I hear complaints about QSC and responsiveness; however, they have replied to me usually within 24 hours. Again be patient (I should talk!).
ASC, Amo-whatever, and a few others are a bit faster as far as replies. I have another one that I am trying for CJC/Ipamorelin and I'll see how they are. They also have the other peptides too, and I only now oder from those I see on the forum.