My buddy wins a 7pk sampler of cigars and the shipping is 3.95. I win a 6 pk sampler and the shipping is 5.50. Why the discrepancy?

Just spoke with Trish stogie. ( she is very helpful and a delight to deal with. Very good cust serv) She's checking on a sit. I had with a 5pk and sampler. Gotta say again,she was extremely helpful.