Review on Strength Black Nylon Bolt Dropper by Ghostnote Hankins

I ordered 1000 11" cable ties which arrived and were perfect. I also ordered these 8" zip ties, they are thinner and won't fit 11" zip ties when I need to make them longer. Why other sizes? Now I want to return them but Revain sent them via UPS. In Puerto Rico there is only one UPS store and it is an hour away at the airport. To ship them back via USPS, I have to pay for shipping myself, which costs about the same as the ties, and there's no guarantee I'll ever get a refund! I'm not happy with Revain Why can't I use USPS or UPS?