Correctional Services said that “matters are under control” at Johannesburg’s Sun City Prison on Wed.
Mhlongo was surprisingly relegated to the stands by coach Muhsin Ertugral despite being one of the team's key players over the past couple of seasons.
Instead, Ertugral opted for Felipe Ovono against Golden Arrows and Bidvest Wits in August.
The decision backfired when the Equatorial Guinea international conceded soft goals in the two matches.
Luckily for Ovono, Pirates went on to win 4-1 against Arrows but he was not so lucky the next time as Wits benefited from his errors to knock Bucs out of the MTN8.
Mhlongo has since reclaimed the No. 1 jersey and justified his inclusion with man-of-the-match performances.
The Bafana Bafana goalkeeper told Sowetan yesterday that Ertugral was an "honest" coach and he knew why he was on the stands.
"It is always good to have an honest coach like him," said the shot-stopper.
"Most people didn't know that I was sick with flu before we played the Maize Cup [in August against Platinum Stars], so I wasn't part of the team. Obviously, the guys did well and brought the trophy back. The coach saw it fit to continue with that winning momentum with Ovono and Jackson [Mabokgwane]," Mhlongo said.
Mabokgwane started the match against Stars, which ended 0-0 and Ovono came on as a substitute to save two penalties for Pirates' 3-1 win in the shoot-out.
"I think it was only fair for him [the coach] to continue with the guys because I was not part of the set-up and I had to work hard to come back to the team. Yes, you can say I'm number one now, but obviously if the guys are working even harder and I'm resting on my laurels, then someone else will take the position," he said.
"I had to make sure I stayed prepared and I always say chances favour a prepared mind so if you are not prepared it was going to go past," Mhlongo continued.
The 25-year-old is also looking forward to adding more national team caps to his name after making his debut against Ghana in Durban last week. The match ended 1-1.