What should I do if my bank won't provide a certified statement for my Thai visa application in KL?

Correct me if I am wrong but they are asking for a certificate which says that the bank account is connected to your passport/identification number right? Is there any way for you to get that certificate/document? I asked my bank for an advice, which stated my passport number, bank account and the amount of money in there

Unfortunately like some others have mentioned, Thai embassy in Malaysia is particularly stringent on requirements.

I would give it a last shot to attach any official communication with bank representatives mentioning this, followed by attaching a cover letter to the embassy explaining your situation in detail. Tie your explanation back to your original intention of wanting to stay in Thailand (i.e. because you have deep interest in the culture, plan to make this your home in the future, etc).

Feel free to drop us a message if you have anymore questions, we've helped over 250 of our students attain their DTV visa through our cooking programs so we're quite familiar with the process.

KL always asks for certification. If you couldn’t get it, probably should have picked a different country/embassy.

Cancel the application and go somewhere with less requirements if you cannot get the requested documents. KL is known to be quite stringent.