Unfortunate, they definitely should have offered you a proper plan as VW has an official option to extend I think up to 8 or 10 years (but you need an active service or maintenance plan to do a time or mileage extension), you can even extend it online and pay for it.
since yours has expired already I would say you have the following options as mentioned above :
1. Sell the car and find another with a similar price (that has an active plan), lots of admin to do this though
2. Get a qoute from
https://www.liquidcapital.co.za (they have service and maintenance and warranty last I checked but read the fine print as there will still be items or limits that result in you paying out of pocket)
3. Find an approved mechanic that charges less than VW itself but does a solid job (perhaps make a post asking for recommendations based on where you stay)