You know what, who really cares. You should feel fortunate that you even have surveys to do, and videos and offers, etc etc.I am an american living in Costa Rica and you know what i get, 7 lousy carousel views for a whopping 150 creds per month if I am lucky.
I was in the states visiting friends for about 10 days and in what little spare time i had, just watching videos and doing a couple minimal offers I made like 500 credits, so if I really tried I am sure you can make multiple thousands of credits each month, which is enough to keep you in balls and gear without having to drop a dime or throw your hat into the RG world.
I wish I had that same possibility, so who cares what one survey did to you taking a few credits from you when you still get to rake in tons elsewhere