You are not the first person to bring this up. I just hope its the last time
TCP maxes out their Cardpool payout at $1000 spend. Most people interested in gift card reselling are well aware and have used up their maximum bonus
Once a unique user has reached the threshold of $1,000 in purchases and sales, in total across ANY reward or cashback sites, they are not eligible for any more cashback from Cardpool and your transactions may stop tracking or go on to be declined.