There is no email facility for eBay, it's a Call Back option.
If you have changed postal services and tracking , first try and change this yourself, by using a laptop / PC and try Chrome.
If it's not possible, contact eBay Customer Services they will change those details for you.
Once tracking has shown delivery , your payout will be released 2 days after that delivery date, if not, or it's not possible to change the tracking details, the payout is held for 14 days.
This is the easiest and quickest way to contact eBay Customer Services, for a Call Back option.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
Lines open 8 a.m. - 10 p.m. on weekdays
9 a.m. - 6 p.m. on weekends.
Automated agents will be available on chat outside of the above hours.
I recommend contacting CS first thing in the morning as there's more chance of Dublin answering.
@hin5427