I visited E&E Dental for Root Canal for a Molar - after the first 2 visits and after spending RM850, they told me that they might need to refer me to a specialist - as they were not able to find the nerve as it was slanted and they didn't have the microscope necessary for the treatment.
Prodental Surgery quoted me RM 2900 with a total of 3 visits.
https://prodentalsurgery.com/
The doctor at Prodental surgery - Dr Tay whom i see on weekends is very professional and super gentle, she is definitely not the cheapest. Therefore would recommend that you go to them if it is complicated.