Poor job done and getting no feedback

My husband took my vehicle in to have smash & grab done on the windows. This was a birthday gift to me. The job was not done properly and there are bubbles on the windows. I called them and informed of same and they said it is no problem they can have it fixed. I advised that I work in Centurion and it will be inconvenient if I have to take vehicle back to their branch. I spoke to the Zambezi branch manager who said he will arrange with Centurion branch to contact me and I can take vehicle there. They were to call me back. 2 days passed - and I heard nothing. Again I called and advised that nobody has contacted me. Again they took my details and said someone will be in contact. That was a week ago - I am still waiting. This is really poor service - they were paid and now they don't care to ensure they fix their mistakes. I am disgusted as a client that I need to keep following up with them to fix their mistake! I want my money back seeing that they don't want to fix the work done!