I can't imagine what she must be going through. It's a horrible and traumatic loss.
But the people selling her on the idea thay such a thing will ever be possible are ghoulishly preying on a grieving mom. Her son is gone and will never be alive again. There's no amount of money that can change that.
This. Even if cloning humans were legal, and she wanted to clone him, or freeze his deceased body to clone him in the future, she'd only have a few hours before his DNA was no longer viable for cloning.