The 5/30 BKK travelcard contains 5 coupons, each with a validity period of 24 hours. The travelcard is valid for 30 days from an optional starting day. Before travel, please indicate by crossing out the start date and time (day, hour, minute) of your trip on the 24-hour coupon – indicate only one date, do not correct afterwards. The start date must be within the indicated 30-day validity period. The validity of the coupon used on the last (30th) day of validity may extend into the 31st day. The individual travelcard coupon is valid for 24 hours from the indicated time and date for an unlimited number of trips on the full length of lines 1-99, 101-299, 900-999, M1, M2, M3, M4, D14 (on lines D2, D11, D12 on workdays only) as well as on lines H5, H6, H7, H8, H9 within the administrative boundaries of Budapest. The coupons of the 5/30 BKK travelcard are printed as a single document and must not be separated. The 5/30 BKK travelcard is to be used by one person at a time.
Refund rule: only refundable before the start of validity, see details here.
Please find more information at the following links concerning advance purchase rules.