Unable to assist clients

I called the sales dept on Monday afternoon to apply for a unit and wanted the cash option. However I saw on the installation van which came home to install for my brother 2 months free subscription if you sms. Unfortunately I haven't taken down the short code number or any of the details on the van.

The agent asked me for that number so she can get me the 2 months discount and installation asap.

Up until now I am receiving such pathetic service. No one is competent to help me.

I thought this company was good.