I bought my hoverboard from Amazon with the guide top cheap hoverboardso I can get in touch with the seller and Amazon if there is no clue for me. Maybe you can try to find a scooter seller online to ask if they can help you to figure out, the features such as the price and process.
I believe LTA wants to remove all blames from such problems. However, GE is coming, so can not immediately openly banned such vehicles. More efforts to discourage usage will kill interest in such vehicles. If you are not medically unfit to cycle a normal bicycle, why bother to take the risks involved. It is not free or very cheap either.