Company no longer cares.

I booked a flight Jhb to Amsterdam and on to Porto in Portugal, The payments seemed to fail repeatedly on the site. Eventually I got the payment approved. It then transpired that Travelstart had in fact processed the payment twice. I have been unable to get them to do a refund for the second payment. They do not answer emails. It is a miracle if you happen to get them on the phone. It has now been over a month - and despite being assured (during that one miraculously answered phone call) that they are processing a refund, nothing has happened. I used to use the site all the time - I fear it has changed, it is no longer a reliable or even useful resource.