Here below is a brief and understadable guide on how to purchase Stellar from Viet Nam on the Changelly site:
Please be aware that this may take from a few minutes up to a couple of hours for Stellar to arrive into your crypto wallet. We undertake to transfer your XLM as prompt as possible, but from time to time there are delays because of the following reasons:
- Overload of the blockchain;
- Updates of cryptocurrency;
- DDoS attack.
That's all! Your XLM will be transferred to your wallet asap.