How do i contact ebay when I have only received half my refund

[trajeec]

I purchased 2 cake stands that never arrived. the seller refunded one cake stand & ebay closed the case.

Now I can't seem to contact ebay about this as they say the case is closed.

[kopenhagen5]

Select help at the top of the page then scroll down to call us or chat.

These are only available during business hours.