Travelstart poor service

I have been a loyal client of travelstart for years now, enjoying good service with their easy to use online portal. This ended abruptly with COVID unfortunately. Due to lockdown restrictions we had to change our trip over December and after a struggle we managed to get their approval to change the travel date to this year. I had paly the airline and Travelstart down against each other... Now that I have indicated a new date which they allowed me to do, they are not coming back to me. Over the past 2 months, I have had 2 responses, and not proper ones, I must say, and still struggling to a final booking out of them. The flight I purchased last year was over R8k and should I book it now, it will only be just over R5k. I still get an invoice to pay an admin fee, can you believe it. So after I asked why the flight isn't cheaper, or at least no admin fee, I started getting the poor response... This terrible Travelstart, especially for a loyal customer over many years!!!! I hope you respond to this message and get this sorted now, else it will cost me more effort in taking you to the Ombudsman. Obviously doing this take effort which I don't want to do already, but felt it necessary since I am not getting service from you and getting increasingly worried that you might charge me even more once you get back to me one day!!!