2. Even Skrill and netellar isn't allowed in Bangladesh due to preventing gambling purpose. I can not find the source, looking for the facebook post of Mostofa Jabbar (Minister of Post and Telecommunication).
I have heard it but that is past people used skrill/neteller by VPN at that time. But now there is no restriction of using skrill/neteller. And skrill/neteller was not banned legally, it was blocked for unknown reason or they though it used only for gambling but latter they understood freelancers also take payment via skrill. But that doesn't mean people can trade foreign currency without proper approval. If anyone, wants to trade foreign currency they they must have to get a legal approval from their government.