Bitcoin is built on top of an immutable blockchain. That means that no transaction can ever be reversed, without undermining the security of the entire system. Thus if you send a transaction to an address that you do not control, you are unable to get your Bitcoin back.
As a result of this fundamental part to the Bitcoin protocol, Bitvice is unable to reverse any transactions once they have been broadcast to the Bitcoin blockchain. If you confirm an incorrect Bitcoin address within your profile as your receiving address and then proceed to purchase purchase Bitcoin, Bitvice will send your coins to an address that you do not control, resulting in a loss of your funds.