Billing Questions

How Will I Be Billed?

An invoice will be delivered with each case. You will also receive a monthly statement that will itemize the previous 30 days’ invoices. Statement is due upon receipt by check or credit card.

We gladly accept MasterCard, VISA, and DISCOVER. Feel free to call us with your credit card or arrange automatic monthly payments. Sorry, no revolving credit. A collection charge of 3% per month, (36% annually) will be posted to any past due balance.

Want To Set Up Automatic Payment Of Your Monthly Statement?

Automatic credit card payments can be set up for total current monthly statement balances.

If you are interested in this option, please click here to download an authorization form.
Please print, complete, sign, and mail or fax the form to:

Barb Rotter
Keller Laboratories
160 Larkin Williams Industrial Ct.
Fenton, MO 63026
Fax: (636) 600-4396

Have a Billing Question?

Contact Barb Rotter: (636) 600-4214 or (800) 355-5537
Fax: (636) 600-4396