cannot log in to contact ebay

[foam-shop]

my brother cannot access his ebay account all his details are correct  - ebay say phone 2086100157 and quote a fault/code number to resolve  however bt say this is an incorrect phone number  - how can he contact ebay  thank you

[**peaseblossom**]

The only contact we have is requesting a callback on here:
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid