You have to give MG about a month. If in a few weeks you don't hear from them, and I would email first, then certainly you could do a chargeback. But I would advise you to give it a little time and email your concerns. MG used to refund your money if you weren't happy. They won't do that anymore? I haven't used them in a long time well if you look a few posts up you will see why. Same deal my emails were not responded to so I asked for a cancellation and got it.