Can we discuss printing using services (jlcpcb, pcbway, shapeways etc) here? Materials, limitations, personal experiences etc?

I’m having a strange experience with JLC 3d printing service. 72 hours is looking to be a week tomorrow. Customer support said that they “will try to ship it soon” after I contacted them after the order status hasn’t been changing for 2 days

This is so different to their main business, PCB making, which is extremely sharp and smart.

Upd: after contacting them, they shipped the order.