8BitCade XL not at same starting point as instructions

I just received the 8BitCADE XL package (ordered through Inventr.io). The instructions (both pdf and video) start off with disassemblying the XL and unplugging the battery. The parts I received are not in that state. The battery is not attached to the bottom case and the battery connector is not attached to the PCB. Soldering the battery connector onto the PCB isnt a big deal, but I have nothing to attach the battery pack to the case. No double sided tape or anything like what is mentioned in the parts list (500mah + Double sided sticky tape). Nor do I know exactly where to mount the battery on the case. Do the instructions need to be updated or did I get an incomplete package?