Won't let me sign up

Google Sheets
1

I am trying to sign up and it says my credit card expiration date is incorrect. I tried 5 different cards and it says that on all of them. Help?

I emailed support but no reply. I am guessing maybe that is my answer about Tiller? Seems like a cool tool.

2

Hi Shane,

It looks like Selina has reached out to you regarding getting your account set up.

Thanks for reaching out.