Yes.

After two weeks--

*crack*

"AAAAAAHHHHHHHHHH!"

"Hahahaha, this is so much fun!!"

*craack*

"AAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHH!!"

The wardens did not hesitate for a moment to carry out orders when the first week of the respite ended, even though it was clear that Robin was writing to them what they wanted... 

At the end of each day, Robin was interrupted for two hours to whip him, destroy his body with lightning, or maybe pour boiling liquids on his body if they are in a good mood.

His ability to heal was a blessing and a curse for him... It was the only reason that kept him able to hold the pen and move his hand to write every day after the torture session ended, but it was also the reason that made the two giants very happy continuing to torture him every day in the most severe ways without fearing for his death.

Two more weeks passed, then three...