Custom Cargo Train kompatible Bausteine Toy Set 959 Stück

My son used his own money to purchase this set. It is a great set however we are missing multiple pieces. The company has sent a second shipment that included all of the motorized parts. I am still waiting for them to ship the remaining missing pieces. Very disappointing as the missing pieces make it impossible to actually play with the train as the connectors for the cars are among the missing pieces. I am hoping the company will sort this out.