The quick is answer is you CAN't!!! There are people abusing Scramble with Friends by sending out multiple invites a day and no matter how many times you decline or ignore you get more. We emailed Zynga about this and they said tough luck. The reasons behind this are unknown but we're sure it involves a profit and personal incentive. The sad part is the Zynga doesn't care … [Read more...] about How to Block Users from Spamming by Sending Many Unwanted Game Invites