Many schools around Bangkok offer their own playgroups. These are run by the school, not BAMBI, and are mostly structured where the school/centre organises some activities for the participants. You can flash your BAMBI card and receive a discount at the playgroups listed here.
Please check with schools directly for any changes or queries before attending.
Some of these playgroups require a reservation and may request completion of a health screening form or proof of a negative ATK result.