I will address your request to unban all VPN providers first and foremost.
Data Centers are providers of a few services, some can be VPN/Proxy services (dependant on their client) that allow users to route their connection through the Data Centers IP(s)/Server(s). Though some users use this (such as yourself) to improve their connection quality, it is also used by individuals that use them to dodge in-game bans. This is why VPNs are banned in general, as they hide the users home external IPv4 address, and also allows a user to bypass in-game bans that are primarily IP/Hostname based.
Our best defence against this is to disallow VPN/Proxy services in general, and is why you'll run into a plethora of range bans on different Data Centers. This is especially true when the Data Center has been used to dodge an in-game ban. Does not matter if the service is being used legitimately, there will always be someone using it to dodge an in-game ban.
Your request to unban all VPNs is thereby denied.
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With regards to your claim that your services are "throttled" when using certain services, Warcraft III only requires a
minimal amount of bandwidth to play. The article I've linked is the official requirements for Warcraft III, and it states you need a connection of 28.8 KBps+. This, when converted to kb/s, is 3.6 kb/s. After trying it out on my computer, the connection did not surpass 550 b/sec which is 4.4 kb/s. A decent dial up connect is able to produce upwards of 40 - 50 kbps which is between 5 - 6.25 kb/s which can be very unstable when compared to more modern connection types.
In addition to this, the game itself has no built-in reconnection tool. This means even if your VPN provider were to give you a solid connection, if a bump in connection (loss of packets, etc.) should occur between the host (our bots) and your VPN provider, it would result in you being disconnected regardless.
This is why we always suggest that the user use a reconnection tool to remedy any issues where if a connection is unstable, the connection can be potentially restablished when it is lost.
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Now, with regards to your request to be whitelisted, does your connection get throttled past 10 kb/s, have you considered using a reconnection tool?
Also, looking at your stats for stay %, you're sitting at a 82.5% stay rate across 1083 games (cardflip#useast.battle.net), and your last autoban on that account was was back in 2016. Your most recent ban would be voluntarily leaving on an alias, which has nothing to do with your connection. Not sure why you need to use a VPN with such good stay % stats.
If an account were to be whitelisted, you'd only be allowed one. However, I'd like to be convinced more with regards to why you feel the need of having a whitelisted account only to use a VPN. After you've provided additional reasoning behind the need of using a VPN, it'd need to be discussed among some of the other staff members to ensure we're all on the same page.