I hope this answers your question on basic maintenance costs, i.e., the engine oil and oil filter.
My cabin filters and air filters were fine, so I didn't replace them.
The next maintenance is due after 2 months, and then I will update here accordingly.
p.s. I noticed that they wrote 10942, which is exactly 5k km more than the reading on the said day instead of the recommended 10k km interval, for the next routine maintenance. An error at their end; the recommended interval is still 10k km or 6 months.
Also, the car uses 3.5 litres of oil so they give you the 0.5L back.