If you would like to acknowledge the receipt of a donation, here is a simple template you can use to write an acknowledgement letter for donation received.
We, at [company name], would like to inform you that we have received your generous donation of the amount [amount] on [date]. The transaction was made from the account number ending in [account number last 4 digits].
We would like to thank you from the bottom of our hearts for supporting our cause. Reach out to us in case you have any doubts regarding your donation.
Thanking you once again.