Sheriff sent knocking on my gate at 6am!

I am disgusted with the service of Lake smit n partners yet again.before it was a billing issue,then a ************** issue now they send a sheriff to come to my home knocking on the gates at 6am to serve a summons! No account or reminders were received but straight to a sheriff! And now they say I'm liable for sheriff charges as well. Never have I had such terrible service from any company.