Call centre operators so helpless

I wonder if the guys at your call centre are well trained or they just do not understand the products they work with.<br> <br> My August invoice did not update on that online portal we access each month end. I requested August invoice it was supposed to be dated 13 August, the guys at the call center tell me to check my email just to realize after dropping the phone 15 minutes of arguments they sent me a statement, i explain to them i do not want a statement i want my invoice dated August end of story. they keep telling me i will get the August invoice during September which is incorrect they need to go do their training. I sent an email to customer service just to prove that my arguments are well looked into.