Has Steak Frit' gone out of business?

Quick question for anyone in the know:

Did the Steak Frit' chain go to the wall? We tried to eat at their Grand Place and St. Catherine restaurants last night and both were closed, even though they should have been open according to their advertised opening hours. At least it explained why no-one answered the phone! I went past the Grand Place restaurant again today at lunch and it was still closed...

If they did go bust then it's too bad, as we really liked it!