When dealing with drones, one needs to be VERY careful as some cities, towns and villages have installed jammers to prohibit their use. This means that your drone will only get a very short distance from you and it will be jammed. Nefarious people use them as a modern day "peeping tom", so in some places rather nasty forms of drone control are implemented. Before using a drone ANYWHERE populated, you should first check with local authorities about any drone restrictions in the vicinity. Airports, military posts, federal posts also are all users of jammers. If you happened to be in one of these areas, then the local authorities would view you as being in contravention of the law. You would then be 100% responsible for the drone as it is not their fault the drone got jammed and crashed. Even a cheapy drone will work up to several 100 yards. From what you describe, it sounds like your drone was jammed and crashed. Individual people can also install short range jammers in their residence to protect from unwanted eyes. There are also people that choose to be complete jaskasses and look for people running drones and jam them on purpose just to destroy their drones. Either way, the fact you were delivered a working drone that crashed while you were using it, the chance of a refund is slim to none.
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