I've tried purchase some Aigang tokens on your platform and it is terrible, several times I just lost my gas and no purchase happened, moreover price for gas is really high, something like 15$ for transaction.
Bancor also has a support team that can be reached at contact@bancor.network, they would be glad to help you or anyone else having problems.
The help center is also being added to frequently with a lot of information. I recommend anyone with questions check it out - https://support.bancor.network/hc/en-us