Commissary is only once per week. There are dollar limits as to the amount that may be spent in a given week or month. It is usually $50-75 for weekly maximums in state facilities and $310 per month in federal.
https://www.inmateaid.com/ask-the-inmate/does-a-prisoner-at-shutter-creek-correctional-institution-have-access-to-buy-commissary-every-day.amp#answer
Accepted Answer Date Created: January 20,2015