I wish I'd read more reviews before signing up to My Survey. Seems I'm not the only one where they suddenly deactivate your account and refuse to give a reason why, nor reply to emails. Fortunately, when they decided to deactivate my account without reason, I had recently cashed in and had a very low point balance, but I see there are others who were deactivated and can't get their money.
UPDATE!
Two months after initially contacting the elusive Emma, I now have a reply which states that they deactivated my account because it was accessed from another country. They also advise I do not use my account at an internet cafe. Well, it gave me a laugh and I deactivated the newly reactivated account. I wonder how many of these generic emails have been sent to others that have complained on this site? Just do yourselves a favour and don't sign up in the first place.