RMI Approved Workshops doing electrical repairs on Saturdays?

[49albertsc]

Hi there. I have to get some electrical repairs done on my car (Opel Adam) specifically related to the ECU. My warranty says that I have to take it to an RMI approved workshop, but I won't be able to do this on a day other than Saturday until sometime in late June. Most workshops don't seem to do repairs on Saturdays.

Any suggestions for an approved workshop that would be able to do these kinds of repairs on a Saturday?

I'm based in Randburg, but happy to drive a bit if the workshop is further away.