I wrote them about wrong country issue, and this is the reply I got:

Recently you have contacted us regarding the decreased frequency of survey invitations that you receive. We have reviewed your past participation in the e-Rewards program and have determined that your particular demographic and consumer profile may not be in high demand for our clients at this time.

As e-Rewards serves a vast array of clients in a myriad of industry verticals, it is not unusual to have market research needs change abruptly and frequently.
Thanks,
Beth
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