No reply......from courier guy

No updates on my package since wednesday. So tracking means nothing. But then you try and contact courier guy. 3 mails later not even a reply how bad is that. Tried phoning twice it just rings then the calls gets ended. No other way of contacting them. After hours nr doesn't work an says mailbox full. Maybe full of other complaints. "We love to handle your package"...... They can't even provide the most basic of customers service.