Integration of systems lacking

Hi, just a heads up, since you guys are a franchise, maybe your'll should look at linking up your systems. I purchased some goods from the sandton store on friday (7 Dec) then went to the woodmead branch on sunday (9 Dec) to return the goods. I get there with the card payment slip, as i am not too certain where the other part of the slip is. The manager there tells me,they cant assist, if i purchased it at the woodmead branch they will help but since i purchased it at sandton,i must go back there. Your'll are offering a service to customers by having various branches, why is it that all branches cannot assist with the same thing? Why does the customer now have to be inconvienienced due to this lack of integration of the systems. Or is the branch manager at woodmead lying to me?