Travelstart

I recently booked a return air ticket on Travelstart. Received an email informing me that it had been cancelled due to non payment (ZA***) A week later, I made a second reservation (sane date and routes), paid via my debit card and a day later received another email informing me that because of non payment the reservation had been cancelled. I then made a third reservation and used my credit card and received the e ticket within minutes. In between I have sent numerous emails requesting Travelstart to cancel reservation ZA*** and to refund me the money that is owing to me on my debit card. Today I received an e ticket for the very reservation which was supposedly cancelled because of non payment. Despite trying to contact Travelstart on their webpage and submitting my request, their webpage freezes. Once I have completed my trip in January (the third reservation), I will not be using Travelstart again and will also not recommend them.