Over a year later, and this still isn't fixed. We bought a $25 gift card at a store (I had my 10 year old buy it with his own money, because I'm teaching him to be financially responsible). When I opened the app on my phone and tried to add the GC money to his account, at least in that case it explicitly told me I cannot redeem GCs to managed accounts. Odd, but OK... So I add the GC to my account, thinking I'd be able to "Send Quest cash" to my child's managed account. When I do that, I get a cryptic message of "Something's not right. Please contact customer support." After hunting around on the site, I found a way to email support, but I wonder if that's any better than shouting into the void.
It is absolutely absurd that managed accounts on this platform cannot hold game bucks. Not even mediated through a parent, apparently. Different issue, but I'm also not able to stream video from his game play on to my iPhone. I thought at the time it's just poor iPhone app support (which would be bad enough), but reading through this thread I would not be surprised if some idiotic parental control blocks it. If that's the case, then not only are parental controls too restrictive, but they're downright broken and don't allow me to actually manage my child's experience.
The parents of his buddy just lied and told the platform their kid is 20. I'm seriously thinking of doing that, or throwing this device in the trash.
Also, whoever from Meta is monitoring this thread keeps referring to a "solution" which is not a solution.
If you don't want kids to do anything on this platform, just come out and say it. But as another poster has noted, Roblox doesn't seem to have an issue taking our money.
This is an absolutely horrendous user experience for parents and kids.