You need to contact Ebay Customer Services.
It depends what is happening 'behind the scenes'.
If they are simply verifying your ID and checking your details all match up, that should take about a week.
If there is another issue and the restriction becomes permanent, in the worst case scenario, Ebay will hold your funds for up to 180 days,
Use the link below to get a callback from 8am.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)