Microsoft Customer Service Phone Number?

Under which number can I contact the microsoft customer service, which is also free? Just tried a number and the call was told that the store is closed although the already have 8 open. My laptop does not work and wants to know how to proceed now

MS does not have free technical support.

I once got a number from the store notebooksbilliger and it was free so with me there were no additional costs

What else can you do? I desperately need my laptop

Either check by someone who knows it or if there's still warranty claim. Otherwise for repair at your own expense.