I bought Bitcoin Miner V1.0 on their site for $ 80. When I attached a copy of the payment I was asked to pay a one-time technical support for the software in the amount of $ 154. And that's not all! When I paid for technical support they asked me for distribution or download costs of $ 192! I didn't want to pay for this and gave up on paying the hidden costs further, and the seller kept my $ 234 and never returned it to my account, and did not deliver the paid software.