The VBSCan COST funding allows to reimburse expenses to participants who are enrolled in institutes located in one of the COST Countries Participating the Action, that are the 24 ones listed here in the table "Participations":
http://www.cost.eu/COST_Actions/ca/CA16108?parties
Trainers: specific recommendations to be followed by trainers to claim for reimbursement can be found at this link.
Trainees: Trainee Grants do not necessarily cover all expenses related to attending the Training School. The Trainee Grant is a contribution to the overall travel, accommodation and meal expenses of the Grantee.
Trainees eligible for reimbursement must register for an e-COST profile at https://e-services.cost.eu - each trainee must add their bank details to their e-COST profile.
The general COST rules about reimbursements can be found in the COST Vademecum, linked here.