If it was still functional as mentioned in the listing. Now the buyer
claims that the apps won't download and wants a refund. You're unsure if
the issue is genuine and believe that it's fixable. Remember, open
communication and a willingness to help ...
While it's not against eBay's policies to mutually increase prices, it
could be seen as price fixing which is generally illegal. It's wise to
be cautious, as you can't control other sellers' actions and a price war
could harm your profits.