Vodaco Uchoose contract dishonesty

This is my 6th complaint since Sept 2018 re Uchoose contract dishonesty by Vodacom. I am short changed every month with the amount of airtime I should be allocated, they owe me R181.73 airtime incorrectly subtracted over the last 3 months. Vodacom should you contact me please get a senior person to speak to me who understands how to interpret point 10 of my Uchoose contract and not an agent who reads a Vodacom scripted answer to me and cannot interpret contractual law.