Below is a concise and easy instruction on how to purchase Polkadot from Bhutan on the Changelly site:
Please take into account that it may take from a couple of minutes up to a few hours for Polkadot to land in the wallet you have provided. We are doing our best to transfer your DOT as fast as possible, however, occasionally there might be delays caused by the below reasons:
- Load on the blockchain;
- Cryptocurrency updates;
- DDoS attacks.
That's it! Your DOT will appear in your wallet promptly.