How much does Wells Fargo charge for T-bills?

Excuse me, could you please elaborate on the fee structure that Wells Fargo imposes on customers who wish to invest in Treasury bills, or T-bills, as you've mentioned? I'm particularly interested in understanding if there are any upfront costs, maintenance fees, or transaction charges associated with this type of investment through Wells Fargo. Additionally, are there any minimum investment requirements that I should be aware of before proceeding with such an investment? Your clarification on these points would be greatly appreciated.