I have submitted 3 tickets and did an online chat because you can not call anymore. I am missing part H. The online chat tech said they don't have ANY in stock so I can't complete the assembly of my chair. What kind of company doesn't stock extra parts for this sort of problem? I'm very unsatisfied because they won't tell me when the part will be in stock. I paid someone to assemble this for me and now can't even use it!!!