The Chennai Silks — Escaping my promised money for an order

I am an incharge from a school and I discussed with the joseph sit in Y Junction branch, regarding the deal as I need 37 sarees from them, and later we took 49 sarees from them, I asked regarding my commission before giving the order, he and Nagendra said ok for that, andwe gave advance of 10, 000 we cleared the amount on 29th 40, 000, and 11250 on 31st december, from then I am calling them anf they are saying today, tomorrow, and then later, from 7days they are not even responding to my calls and messages, and talking very irresponsible, I have the respective, call records, and bills regarding the same as they said ok for my commission .
They promised me for 10% commission.
Please look into this matter and clear the issue as soon as possible .

Thanks and regards .