[Plugin: WooCommerce] Add minimum and maximum quantities

Hi,

In our woocommerce shop we have some products like the following:

1-9 Conversions
10-99 Conversions
100-999 Conversions
1000+ Conversions

We are looking to set up some rules that when users choose 1-9 conversion, it will only let them select 1-9. The problem we have at the minute is that customers are select 1000+ because it’s the cheapest and then just selecting the quantity of 1. Could somebody please point me in the right direction on how to make it so they can only purchase between the brackets?

Thanks
Matt