Problem With A Petco Store In Ga

On June 6th I went to store #1722 and purchased 107 cans of cat food. The register froze with the transaction after I swiped my debit card. The store manager Traci called the help desk and was told my account information did not go thru. Once I got back home I checked my account and the transaction did clear my bank. I then called the store and they said it should drop off overnight. June 7th it was still on my account and went back to the store and spoke to Eric. He said it takes a couple of days for it to drop off. June 10th it was still showing on my account. I called back and they said it was my bank's fault. June 11th i went to my bank and told them what happened and they said it's PETCO"s issue. The amount was $49.30 and I want my money back.