Limestone paving ruined

[crza]

Hi, I recently put down some blue kotah limestone paving. I grouted using the dry brush in grout from wickes. This left staining on the paving. I bought some patio cleaner from B & Q to try to get the stains out and it must have contained acid even though it didn't say so on the bottle because it has turned my limestone white on the surface, it now looks absolutely awful. What can I do to restore the limestone to it's original condition? Thanks in advance for your help.

[RAPressureWashing]

Just looked one similar to this recently, you have more then likey etched the surface as the off the shelf cleaner most proberbly had hydrocloric acid in it. Can you post a photo of the damage?