Trouble getting table shipping to work

Hey guys,

So im trying to set up the shipping on my site, I want to use table rate shipping.

so Ive gone into store/settings/shipping and ive clicked edit in the table rate section.

selected the prices I want as follows

100$ or more – 20$ shipping
200$ or more – 30$ shipping
300$ or more – 40$ shipping
400$ or more – 50$ shipping

Ive clicked on update,

Clicked and Checked “Use Shipping:”

Checked and checked “table rate”

clicked Update

For some reason its not working, its still wanting to use flat rate.

I need some help please!

thanks