OVERCHARGED

I made an online purchase on the 10 Nov and when my order arrived I realised I was overcharged on the laptop bag I paid R780 but the tag on the bag says it's R730. I sent an email to the TFG customer service and the following day I got a call from their customer service agent trying to offer me magazine's and stuff, I told her about this and she didn't even bother to assist and instead said someone else will reply to my email. On Monday I got a reply on my email saying my query was forwarded to the online department yet I am still awaiting them to resolve this matter.