Horrible travel experience, no end in sight!

I am a pensioner. My wife and I booked through Travel Center, Centurion and we were assisted by Anneli Roberts. We flew to London and had to connect to Amsterdam. Anneli told us 2 hours was enough for the connection. As we required assistance (and she failed to help us book our baggage through to final destination) we arrived after boarding gate closed. We were forced to buy new tickets to continue the journey on a later flight. Due to an error my booking disappeared for the return flight while my wife's booking remained intact. I contact Anneli urgently on April 19th to help me sort this out with the airline, and he last words were: "I am contacting the Airline quickly, will get back to you soon." 3 weeks later, not a word and my booking gone!!! I demand better service as a paying client.