I want to buy something on German eBay......

[tilang49]

However when I try to set up my German account it will not accept English address and continually reverts back to German addresses.....how can I get a message to a seller please?

[m25jet]

In addition to the advice that you have already been given on this thread, remember that if you do decide to purchase an item from a German seller - or any other nationality of foreign seller, for that matter - then you will have to pay 20% VAT on top of the advertised price of the item.  This is due to changes in the law post-Brexit and eBay are now legally obliged to collect VAT at the point of sale for all items purchased from sellers registered overseas, and/or in cases where the item is located outside of the British Isles at the time of purchase.

[plpmr]

adding to rusticrye good advice -

Also remember that a good number of German sellers don't accept PayPal - usually bank transfer.

So check out buyer protection on German eBay.

[rusticrye]

You don't need a German account, and can't have one unless you live in Germany. You buy using your UK-registered account. 

Before you buy, check that the seller ships to the UK.  Not all sellers ship internationally at the best of times, and definitely not during a pandemic when most European countries have closed their borders.

@tilang49