Dissapointed with accusations of dishonesty

I purchased some parts to replace a skylight on my RV. The team was extremely helpful. Returning the next day with an unused roll of butyl tape it was suggested that I had used some of the tape as the roll was smaller than it was when I picked it up and I was not going to receive the refund of roughly $6. I could care less about the $6. I left the roll of tape on the counter and I'm sure it will be sold to the next guy. I was extremely offended by the accusation because I honestly did not remove 1" of the tape. In my books this is an example of sad customer service. I'm admired among many for my fair dealings, honesty and candor, that won't change it's a pillar of my being. Its unfortunate your team members are so quick to discredit your customers. I believe you'll find them much more appreciative and subsequently loyal if you offer a measure of trust. Regards,