The singer and TV personality moved home to England in 2019 after spending over a decade living in Los Angeles with her ex-husband, Stephen Belafonte, and due to travel issues between the U.S. and U.K., she couldn't fly back and forth to spend time with Madison.
The "Wannabe" star admits that was the toughest part of the lockdown for her.
"I've been a single parent for a long time, as I've always been the one who financially and emotionally supported my family," Mel tells OK! magazine. "Unfortunately, due to the justice system, a difficult situation with my ex, and the fact that my youngest is an American citizen, I have shared care of Madison - and because of COVID, flying between America and the U.K. has been really difficult."
"Not having my baby with me for months at a time is the hardest thing I've had to deal with."
Meanwhile, Stephen Belafonte recently claimed nine-year-old Madison was traumatized after she watched the video which saw Mel B in an abusive relationship which mirrored the singer's real life.
Mel B starred as a battered and bruised spouse in classical composer Fabio D'Andrea's short film "Love Should Not Hurt" for U.K. charity Women's Aid, and Stephen said Madison was left in distraught after discovering it online.
In legal documents as a part of an ongoing custody battle between the former married couple, Stephen claimed Madison was so affected by the video that she told him she didn't want to see her mother at all or travel to be with her this summer.