u/Comfortable-Phase249

I had a cancellation request on an item followed by a message saying they wanted me to ignore the request. I am relatively new to selling consistently, and I have read posts here warning about this kind of stuff. So I processed the cancellation request. The buyer has about a dozen feedbacks, all positive, but it just seemed like that would not be an easy mistake to make. Especially because we exchanged offers several times before they bought it, so it’s not like they didn’t have multiple opportunities to change their mind. Should I also block this person?

Hey all, I have had an eBay account forever, but before a few months ago I had only sold a few times, I was mostly a buyer. Things were going well, but since last week when I create a new listing, I select USPS Ground Advantage, and then I select the option to set my own flat rate. Now I try to do that and it resets back to the USPS Ground Advantage rates and won’t save my own rates. This was working fine for months! It’s still set up on listings from before last week that are still active. It is still an option, but it won’t actually enable the rates I set up. Anyone else having this problem, or know a solution or explanation?