Below are the contact details of the Thai embassy in Malaysia. Note that there are more than one Thai Embassy in Malaysia. The Thai Embassy will allow multiple entry marriage visas if you can show 100,000 Baht in a bank account in Thailand. Rules do change so speak to us online if you need more help.
Royal Thai Embassy
206 Jalan Ampang,
50450 Kuala Lumpur
Tel : (03) 248-8222, 248-8350, 248-8420, 245-8005
Fax : (03) 248-652