Withdrawal lock / Saving program

[powerjinglesnl]

I think it would be a nice addition to create a sort of withdrawal lock option or Saving program. 
For tho's who liked to save their withdrawals but find it hard to save, a lock withdrawal would be a great addition. 

For example: Lock until you reach $500, $1.000, $2500, and $5.000. 
And that if you lock from 1.000 and above that you get fewer fees for the amount because Fiverr already takes more interest on the amount that remains in their bank account until you reach the full amount of the lock you have set on your account. 

Wondering if you guys would share this idea, whether it can or not just to see if people support the idea.