Just to add to what others have posted, there are two issued here. The first is the crediting of MyPoints points. I think it's rotten what MyPoints is doing (cancelling accounts), but if they want to be scrooges, that's technically within their legal rights.

BUT, it is completely UNACCEPTABLE for Tupperware.com to cancel/hold/lock any gift certificates purchased, unless they are also promptly refunding the purchasers' money. It is not legal - at least in California - for any business to cancel a gift certificate paid for in legal tender. Other states have similar regulations, in which expirations dates and such may be allowable.

However if Tupperware decides that customers who made a legal purchase on their Website simply following the prompts given are somehow breaking the "rules," they're in for something else. I would strongly recommend that anyone who gets any similar word from Tupperware immediately dispute the CC charges. Not a very good business practice if you ask me.

SGM