Business ProfileforUPS Store #5780

I was returning an item to a business and paid them for my return shipping label. I received it but there was no option to print it myself..I could only have the ** code scanned and printed at a *** location. I arrived to this store but they were having issues with their scanner pulling up the ** code. I even double checked that this was a location available for me to print my label and make my return and everything was correct on my end, it was just their scanner. Since it was their scanner the lady who was assisting me told me to just forward the email to them so I did. She printed it and then charged my card an extra $2.35 without my approval. I said "you didn't tell me it would cost me to send it to you via email" and she very rudly replied "well of course we are going to charge you to print this." There would not have been a cost if their scanners had been working so I was not expecting a cost for them to fix their own issue. Had I been told there would be an extra charge on top if what I already paid for the shipping I would have gone somewhere else. This is unfair and deceptive business practices. All I want is my $2.35 additional charge refunded but the business keeps ignoring me when I hav tried to reach out