TUMI Store Pathetic Service

I am so disappointed with the TUMI Store in Canal Walk. What should have been an enjoyable experience has turned out to be a nightmare. I exchanged an item for a less expensive item from the store and all that needed to be done was swipe my credit card for a refund of the difference. But after 3 weeks of making numerous calls I still have no money in my account for the credit!!!! I spoke to Megan who passed me on to Nicola who then told me she needed to speak to Jason at the Samsonite head office but I'm still no closer to my money!! This is a supposedly reputable high end store and I would never have imagined that I would be ****MED by them!!!! I even have the credit card slip saying CREDIT REFUND ...but no money has appeared in my account!!! PLEASE do not use your credit card at this store.. you will never be able to return the item and actually get your money back. I am still waiting for some actual constructive solution rather than the run around I'm being given.