12 calendar days after I opened the case, crickets from VW Customer Service....
Called them up today to follow up - basically the message is no update, case is still open, don't call us, eventually will call you at some point (not even a rough ETA provided) ....
This should almost be a cookie cutter case. They know the bad suction pump inevitably takes the charcoal canister with it, so what's there to "investigate" other than a call to the dealership which can confirm the consequential damage (it's on the invoice already)?
Fortunately I can front $1,850 for the repair, but I would imagine there are some people out there that might not.... and those people will probably never buy a VW again. I know this is not specific to VW - all car companies have same MO, so I wouldn't single out VW, but most people would.