Update... Its actually a CR1220 battery (3V). You can get them anywhere, i found them at Dischem.
The best part is still to come:
I asked the dealership for replacement batteries. They said it cost R135.00.
Now the remote takes two, i got them at Dischem for R7.95 each. They are GP lithium batteries, so quality is not an issue here!
Tested them with a mulitimeter, and fitted them, and all is well!!!