How To Edit Charge Costs?

How do I correct the cost of charging for the history of my TeslaFi account?

I found out that my configuration in Settings > Home Charging was off, and Winter rates also kicked in last month. What I want to do is:

1) clear all the set prices on home charging (Settings > Home Charging > Clear).

2) set prices for charges made in November only

3) set prices for charges made in December only

4) set prices for charges made in January only... etc.

So far I only know how to do #1

Please advise. Thank you.