@lynnskyn
If you are having issues with the eBay app, make sure you are using the latest version. For Android devices, the latest version is 5.38.0.14; if you have an older version, try removing the app from your device, restart the device and reinstall from the Google Play Store. If you have trouble getting the latest Android version of the eBay app, make sure you have the latest versions of Google Play Services and Google Play Store installed.
See here:
https://support.google.com/googleplay/answer/9037938?hl=en
For specific app issue advice, see one of the mobile boards:
https://community.ebay.com/t5/Mobile-App-Android/bd-p/androidapp
https://community.ebay.com/t5/Mobile-App-iOS/bd-p/iosapp
Regarding Saved Searches:
I have found Saved Sellers and Saved Searches to each be a buggy mess; neither can be relied on. The discussion boards are full of complaints about users not receiving Saved Search emails, or else receiving emails from zombie searches that cannot be found or deleted. Likewise, users complain of being unable to add or delete Saved Sellers, despite being well under the limit of one hundred.
Going forward, your best bet may be to find another way to keep track of searches and sellers that you have more direct control over -- by using bookmarks of searches or sellers' "items for sale", links pasted into a file or an email, or third party automated search tools. Google "automated searches ebay" for some possible suggestions if you like getting emails when new qualifying items are listed.
