You need 50HU to do a re buy and this shows How long it will take to do your first re buy
300 membership Package in 34 days
500 membership Package in 20 days
1000 membership Package in 10 days
1500 membership Package in 7 days
2000 membership Package in 5 days
3000 membership Package in 4 days
4000 membership Package in 3 days
5000 membership Package in 2 days
10000 membership Package in 1 day