Need to check the plagiarism of this company's work

How to do it?

A site which I can trust completely. Won't save a copy of my work. Cannot use truntin.

Thanks in advance.

Does copyscape.com/faqs.php keeps a copy like truintin. Please reply I am in urgent need. thanks

INDIAN COMPANY dissertationstressrelief.com/ POOREST SERVICES NO REFUND

POOR WEBSITE CONSTRUCTION. POOR ENGLISH LANGUAGE.

I PAID THEM TO WRITE MY DISSERTATION ON SOCIAL MEDIA TOPIC. I GOT JUST A PASS MARKS. MY GIRLFRIEND GOT JUST A PASS MARKS BECAUSE OF THEIR BAD SERVICE. MY THREE OTHER VERY CLOSE INDIAN FRIENDS GOT JUST A PASS MARKS. I TOLD THEM TO REFUND MY MONEY BECAUSE THEY PROMISED MORE THAN 65 PERCENT OR FULL REFUND.

THEY REFUNDED 0 PERCENT dO YOU KNOW WHAT THEY SAID? yOUR DISSERTATION TOPIC IWAS VERY DIFFICULT. I HATE THEM. I WILL SPOIL THEIR ONLINE IMAGE. THEY FOOL STUDENTS. NEVER EVERY PAY THEM A PENNY. NOT NOT RECOMMENDED FOR UK STUDENTS. THEY DON'T KNOW HOW TO WRITE DISSERTATIONS.