Retirement tax questions

hmm i filed in the 15th and selected for the 16th to be when they take out the money. however now it is the 17th and i still have the money, but i also know my bank can be slow at updating but idk if that’s how it works when it comes to tax stuff. i don’t want to risk that somehow it didn’t work and then i gotta deal with whatever comes from not paying them. i’m pretty sure i did but have no way to see that i selected for them to be paid and how and when (to my knowledge)