Common fail on 200's and phase 1 V70's this. I tried chromed tape on a V70's lights. Still failed the test so bought some cheap replacements to get it through.
On my 200, just this year prior to the test I bought a set of replacement reflectors from parts for volvo. Certainly not a bank breaker in cost. These were quite easy to replace too. Took it to a garage that doesnt charge for headlamp alignment & test sorted
Have a look on PFV, see if they do reflectors for 9's maybe? Hopefully yours aren't sealed units?