Can this jewelry store actually do this!

Asked by ItalianPrincess1217 (11979) February 9th, 2010 from iPhone

My fiancé and I went to pay a bill today at Kay Jewelers. My fiancé never received his monthly statement because he’s been having issues with his mail. So we informed Kays that we need to make sure the address is correct on his account. Turns out they had the wrong address (they switched it to his father’s address because they have the same names and got it mixed up). Keep in mind we have previously already had to change his address twice before with Kays due to the same reason. So we gave them the correct address again but this time around they went through numerous questions with him such as, how much he brings home on a monthly basis, length of time we’ve lived in our home, etc. We had no idea why they would need such detailed nformation just for a simple address update. They insisted that they must go through this process with every address change. So after answering all the questions, the woman printed out a paper that says he’d been approved for a credit increase. They pulled a credit report and increased his credit without asking his pemission! He was very upset by this. He only wanted an address change. Pulling credit reports hurts his score which he’s been working so long to avoid. The ladies had no explanations and basically shrugged their shoulders at us. Is this legal?! How should he go about handling this? I can’t believe they would make such a big mistake and have no explanation! We’re very frustrated with them. What they just did almost certainly did some damage to his credit score. Can he fix their mistake?