Maintenance for the week of July 6:
• PC/Mac: No maintenance – July 6
• ESO Store and Account System for maintenance – July 8, 10:00AM EDT (14:00 UTC) - 12:00PM EDT (16:00 UTC)
Same happend to me a year ago, I sent a ticket in game and they fixed it in like 3 days saying they did some adjustments in my account. I couldnt use bank, guildtraders or access guildbank and bid on traders with my guild.