Shocking response to returns on clothing with an r

Got sample clothing and my client procrastinated over a decision and eventually decided not to go with it. Vests worth R435. 00 was past the expiry date. Still in original packaging with the invoice, it was refused to pass a credit. With this credit the intention was to purchase 20 golf shirts. I have been dealing with company for 7 years on a C. O. D. Basis. The shirts were not even taken out of the despatch bag and never opened. The response was beyond putrid and pathetic. I was basically ignored and had to ask the lady in the returns bay what the reaction was by her manager. The response was a shrug of the shoulders. Huge company that treat their clients like that, don't deserve to have any clients