[Name of Addressee]
Dear [Name of Addressee],
I wish to thank you for the help you have extended to our foundation by purchasing 100 cards that were made by the student beneficiaries of our project. Once again, your company has proven its concern to the society by engaging in different charity activities such as ours. The proceeds that we got out of your bulk order will surely go a long way.
The money gathered will be used to buy notebooks, pencils, and bags. We will immediately send you a financial report to show you how we utilized the money from you and other companies and individuals who helped. We will also send photos after the actual distribution of the items to the student beneficiaries.
We hope we can start a long-term tie in helping the society improve its current state. Again, thank you for the generosity, and we wish you all the best in all of your ventures.
[Name of Sender]
[Name of Group or NGO]