Text.Gives pages were meant to be set up for ongoing giving. It is best to pick a generic keyword for your organization and then customize your page throughout the year to suit your organization's giving needs.
For example, this Boy Scouts Organization set up their account with keyword "bpscouts."
But they used the campaign for Giving Tuesday. So they edited the title and description to reference that. Once Giving Tuesday is over they can easily change it back to a basic giving page again.