Scam? No.
I bought a mod starter kit with 2 tanks and some accessories. Had some problems, a missing (pre-order) item, even if I check out box: "do not send until item is available". Pre-order had to be available in 14 days, at the moment I was ordering. Eventually it took 3 months, to collect all bits. Selected shipment by airmail. So, it can take longer than expected, but it is not a scam imao. Customer service was nice and responsive in my case.