Google ads are very time & location dependent, the fact that it's showing to you might be a bad sign since you are most likely not close to Durban and this seems like an ad you only want to run locally.
We had a 10x jump just last month for my own company.
For bigger company I consult with we had stable revenue last 2 years even though search traffic declined by 50%, our Google ads still perform the same. In general buying intent still seem to come through Google, only 10% via GPT.
It will become more and more, but a full drop in 3 months means something else is wrong.