PG Glass Wonderboom Pretoria review: They worked on my winscreen and damaged the sensor for the wiper's and glued it back on

I had my windscreen replaced at the Wonderboom branch in Pretoria when they replaced the windscreen they damaged the sensor of the wipers on my land cruiser, the I went back to them and they said 3 weeks ago the manager said that they will order the parts and up until now I have received no response from them but If I phone them they keep on telling me the same story over and over again that they have ordered the parts and are waiting for it

3 weeks now...