The OEM dual mass flywheel is too thin to be resurfaced. Either reuse it or just replace it. It’s usually okay to reuse, but have them
inspect it just in case, which is the only way to tell.
Has your clutch been slipping, and for how long? Generally flywheel damage is most likely when the clutch either starts slipping (due to the friction material wearing off which results in lower clamping load) and is left like that for a long time, or gets overheated and glazed by overuse (ie lots of time on the clutch in stop and go traffic or hill starts)
If the current one is in good condition, you can always return or resell a new or used flywheel.