Suspicious operations

Be careful when dealing with this company. It's is impossible to get a response from them other than pay the invoice.

Placed order on 10th July. Received email asking for payment on 11th July. Made phone call. No answer 12th July. I rep**** to email asking for some technical info on the 12th July. Made another phone call in the afternoon to both contact numbers on the 12th July. Emailed again on the 13th July. Called again in the afternoon 13th July. Emailed and called again on the 14th July. Every email had my name and contact details present.

Still no response to date.

Can only think that the behavior is very suspicious, that the only response is one of having to pay the invoice and that's it.

Draw your own conclusion.