We usually buy services like VPN, SOCKS, Kerio [Kerio Connect?]... to circumvent Iran's Internet censorship policy. Recently, one of the shops started selling [one of] Kerio's products, for which I do not understand what it is.
My question is: Can the people that I buy Kerio's products from see my data? By these people I'm referring to the seller in the shop [we purchased the product from]. Would they have access to the server [we setup using products they sell]?
I'm asking this because the seller is in this case our government, and we purchase these tools from their agents so we can freely access the Internet, and they can easily monitor us and catch those they consider as offenders.
Editor's note: parts in square brackets
 are my addition, the rest is edited for grammatical and readability reasons, while trying to retain question's original meaning. In case of parts of my edits being unclear, please refer to the previous revision by clicking here, or on the timestamp of the last edit.