****?

I've sent an email to this company:

Good Morning..

Please send me an invoice or statement with more details.

Good day

Thank you for your email.

Please refer to the mandate agreement that was emailed to you on the 11/06/2018.

Thank you Administration Clerk Lifestyle Legal Collections Department Telephone: *** Facsimile: ********** The people cant give me an invoice / service agreement / statement

I've called the number and there was no answer. After numerous phone calls someone answered. They cant give me more information and the guy started screaming at me. The people is rude when you talk to them, If you want to talk to the supervisor the refuse to put you thru. What do I do there are threatening smses stating that they are going to blacklist me and I think this is a ****. To whom can I report them to prevent blacklisting?.....