Dropped off a pre-labelled UPS envelope on Sept. .15th. I was returning business forms that were moderately important. A week later they had not been received and were not in the UPS tracking system. After the package was in "limbo" for almost 2 weeks, I called the Mail Store. They told me UPS picks up every day but continued to search while I was holding...after all, I had a receipt proving they accepted it on 9/15. They found it on shelf ...it was Sept. 26th...Inexcusable!! I will never use them again.