You can send as many phones as you want. If you are sending more than 20 devices then please contact us and we can get you the best price and arrange a free courier service to collect your devices.
Don't forget though that one company won't always offer the best price for every single phone: our advice is to use our cellphone price comparison service at SellCell.com and check who is offering the best price for each separate phone in your collection: that way you won't miss out on an excellent offer from one company for a specific phone!