Thank them for giving
Start with thanks for what they have already given.
Confirm what they want
Check the new amount, date or pause length.
Make the change or say how
Do it now, or give the exact steps and timing.
Say when it takes effect
Tell them which payment is the first affected.
Offer a lighter option
Mention a lower amount or a pause instead of cancelling.
Confirm in writing
Send a short note once the change is done.