I'd recommend researching Martingale betting before investing too heavily on this strategy if you haven't done so already.
Getting banned by bookmakers is very much dependant upon which bookmaker you're betting with. I've been banned from Coral for winning small stakes bets (just £1) on correct score set betting (Serena Williams) and Torquay to win (and they did so in injury time). The 1st thing that's likely to happen is that you'll get an email letting you know that "you're no longer eligible for our offers" (which won't stop them constantly emailing you with offers). At this point, you'll know your days are numbered.
Gambling Gorilla got a reaction from CzechPunter in progressive betting on tennis? and being banned for it?