Ridiculous isn't it? I put three forever stamps on their postcard stamp size padded envelope and thought I'd be in the clear because it didn't weigh anything either and it still got returned to me for insufficient postage a few days later. I think they wrote $1.43 on it for required postage. I was trying to avoid going to the post office during the holidays that is why I used stamps to begin with. I don't mind paying for the shipping but wish they could have been more specific on the envelope. I'm surprised none of the reviews I read mentioned this. Perhaps more people than I realized keep a postage scale at home so they can calculate postage for things like this.
Thank you very much for the quick response. My apologies if I sounded a bit frustrated in my original post. It sounds like regular standard postage (or close to it) for a U.S. Letter should typically cover mailing of our samples to the lab.
I have no idea, where the problem exactly is. I'm living on the old continent, and there this game could be sometime a real nightmare, if different custom offices togehter with postage offices are involved. So I hope MyHeritage will clarify it.
I too was only mailing mine from Louisiana to TX. I figured since the envelope was so lightweight that one stamp would do for the postage. When it was returned a few days later, I took it to the post office. I was told there that postage on any bubble-type envelope is going to be at least $3.00. So I paid for the remainder and sent it off.