Does Epic Games have a Customer support phone number?

I am trying to put V-bucks on my sons Fortnite account but it keeps telling me that the Playstation is not linked to that account.

I have put V-bucks on the Playstation account before. More recently I have put V-bucks on his Nintendo Switch account. But now it tells me that the Playstation is not linked. I almost positive I have always only had 1 Epic account. I would like to call Epic games to talk to someone for help but I can not find a phone number.

Has anyone ever called Epic Games for customer support?