I purchased a product on eBay, got a notification email re tracking a package. Received package but seller had not paid the correct postage. My post office did not charge me the amount but asked me to contact the seller to notify them. When I went into my eBay, the product did not show in my purchases and not even in my recent views.  Also I go to the notification bell and it says "We ran into a problem and can't show your notifications right now." That has been happening for 2 days.

Any suggestions.  At least I got what I ordered but why doesn' t it show on my account? Someone suggested it was a scam and the seller has possibly closed their account knowing they didn't pay the correct postage, but shouldn't it still show on my purchases. the notification email was on 16th April 26.