and they do have a decent marketing strategy as they advertise on Facebook and social media. I also didn't see any different on the prices.
I wouldn't be too sure on topup24 having a good standing on Facebook at least. Likes look fake, there's low engagement on most posts, and there's a few users that have been complaining that they haven't received there topup. Hope this gets resolved as this is a decent looking website. Not meaning to bash or anything, but bitrefill does look like the better option at this point in time.