I looked and it has been 2 years since I ordered pellets from Airgun Depot, but back then they were doing 'buy 3 get the 4th tin free'. Double checked my order from May 27th 2020 and indeed it was buy 3 get 1 free. Their prices for pellets and shipping seem to be exactly the same as Pyramyd Air, but no more buy 3 get one free deals. I guess I must have been asleep when this happened??