EUW server log-in, client, champ select, in-game lag/packet loss

So ever since a week ago I can barely get into the client after 2-3 minutes or just get an error and have to try again, when I get into the client, it's laggy as hell and the play buttom/view profile/match history don't even work. when you get into champ select you can't ban a champ, and if you manage to get in the game there's packet loss. I already wrote to support, they said it's nothing on riots part, but our provider also said it's nothing on their part and they also gave proof. I think the player support is just not doing their job of informing the server guys.
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