How much does Wells Fargo charge for T bills?

Excuse me, I was wondering if you could clarify something for me. I'm looking into investing in Treasury Bills through Wells Fargo, but I'm having trouble finding the exact fees they charge for this service. Could you please provide me with some information on what kind of fees or commissions Wells Fargo imposes on their clients when purchasing T bills? I'd really appreciate it if you could break it down for me in a clear and concise manner. Thank you in advance for your help!