How to send messages to customers at the end of the month?

At this time, the method of sending information to customer reconciliation is as follows:

Dear XXX, you are a very important customer. Thank you for your support and trust in our company.

The accounts of this month have been checked, and I hope to get your confirmation. If you have any mistakes or problems, please let us know as soon as possible and we will deal with them as soon as possible.

If necessary, you are welcome to contact us at any time. We look forward to establishing a long-term cooperative relationship with you.