They will double or triple charge you by failing transactions and then charging your account. They have no proper online or official presence and do not respond to emails.
I have escalated this to Visa and raised and Incident with them. They are currently investigating the company. It doesn’t surprise me the Nigerian Govt will be Offically associated with a Fraudulent Company. This company has no published address or telephone number. It is simply set up to scam people. Please report this to the credit card companies as the integrity of transactions using their gateways needs to be protected.