Its because Bitcoin is in early stage, its in its infancy. People might know about it but asking them to switch from fiat to BTC is proving to be difficult We will get there, just have some patience.
Bought another card........about 25 till now. No problems yet. Occasionally the cards go bad and the OP replaces them without a question! Excellent seller!
In the OP it says, (IF participant remains for 1 month total is 0.12 BTC). Don't really understand the significance of this I will earn this in any 4 weeks so whats the advantage of being with you for 1 month continuously?