This is the worst company I have been dealing with...

This is the worst company I have been dealing with.
We have ordered a few times from them, either from them directly or through Amazon and every order was paid in full by card. Each order was either not delivered for weeks or when delivered items were missing and put on back order for further weeks.
And not, some 8 months later we have been sent a letter from debt collecting company!
We have never been contacted by Simon Jersey for any outstanding payment. Out bookkeeping is uptodate and we have nothing outstanding to them. Simply giving customer to debt collectors without even explanation and any effort for communication, I find it outrageous!
I tried to contact their customer services on a numerous occasions, but they dont even bother to reply.
A week later we received a second letter that if we dont pay we face court trial. But to pay for what?
All that company is a complete SCAM.