OTP declined as Agents comission not enough

I signed 2 OTP's (as per the advice of the agent) with Chas Everit on a property i wanted to purchase and was told the first offer was declined as the owner wanted more. What the agent failed to tell me was that the offer met the amount that the seller wanted, but didn't include the agents full 7% commission (R139 650). The commission on the initial offer would have been 4.4% (R75 000). Most places, more reputable, only charge 5% commission nowadays. The owner even stipulated in the OTP that other agents that has sold places in the complex did so at 4% commission (I have a copy of this email). <br> I don't feel the agent was transparent when saying what the reason was for the offer being declined and now i am being held to my second offer, which i would not have submitted if the agent had been forthcoming with information. I know the commission is not paid by the buyer, but it is affecting the selling price. There was not even marketing costs on this unit. <br> If this is the way Chase Everit deals with things, i will not be selling one of my units or buying a unit through them.