I purchased $200 of Sam's gift cards (to use at
Walmart) and went through RMN using the cash app. The 10% immediately came off so they only charged me $180. I doubt that RMN will pay out for a Sam's Club gift card but we shall see.
I also did sign up for the Sam's club membership using the $25 Amex offer and the $45 sam's gift club offer and using a portal. So far I have not had the $25 posted to my amex account (it has been 4 days) but all the offers form the last week and a half have not posted yet so it could just be Amex being slow.
Also, many other people who did this deal reported they never got the $45 gift card from Sam's Club and had to call to fight to get it, so just keep track of that in case you don't get it. Also, other people reported it comes in an email from Walmart, not Sam's Club and takes 2 to 4 weeks.