Avoid Streamline gutters

On the 24 December 2017 I accidentally transferred R10 000 into the account of"Streamline Gutters." They had previously done work on our home, and were listed as a beneficiary on my internet banking profile. I immediately realised my error, and began a recall process through Nedbank, who were helpful. However, the company were closed until 15 Jan. I phoned them and got hold of a woman called Hermie. Explained my story, she said she would investigate. She was rude. Phoned her again on 16th Jan., whereupon she was extremely rude and told me that I was "ruining her day!" I then phoned the company on the 17th Jan. and asked to speak to the owner/director. He was not only rude, but abusive. Told me that "I was part of a **** and that I would wait for my money until 'his auditors had looked at it. ' The money had been in their account for 13 working days by this time, so ABSOLUTELY could not have been a ****. It had long since cleared their account, they were simply conveniently sitting on the money. By the way, the work they did on the property was also a problem, their workers broke a door to get to a toilet, rather than ask the domestic worker, who was present, to give them a key. AVOID THEM!!!