Issue with ThePOP!sickles

Has anyone else dealt with ThePOP!sickles before? Back in August I preordered a demon slayer wave 6 bundle of pops through to them and still have not received them.

I sent an email in October about the preorder and was told that they were still awaiting a single item for the bundle to ship. I have reached out several times about order status or any kind of update since then with no response. The lack of communication is really frustrating.

I was recommend them from a friend of mine who is an avid collector and thought they were a reputable seller. I understand it is on me for ordering through 3rd party. Just wondering if anyone else has gone through something similar with them.