Sample demand letter I have used in the past - if you want to go that route:
Letter of Demand – outstanding payment
Attn: Accounting Department
I am writing in reference to Load Number XXXXX and payment not being received.
I enclose the original contract and invoice # 113 dated August 31, 2019 for the
outstanding amount of $XXX.XX.
I demand full payment of the outstanding amount within 10 working days of this
letter on Friday 13, 2019.
If this matter is not resolved by the time specified above, I reserve the right to
commence legal proceedings OR refer the matter to a collection agent to recover the
debt without further notice to you and this letter may be tendered in court as evidence
of your failure to pay. Legal action may result in you having to pay legal costs,
interest and could impact on your credit history.
Should you wish to contact me to discuss, my telephone number is XXX-XXX-XXXX