Help Amazon messed up big time

Ok so I ordered a Hatsan AT44s-10 in 177. The non QE version. $248 shipped. Arrived sans fill probe mags o rings etc. Fully charged tanked. So I test shot it it and super nice groups. I started the replacement process figuring I will test shoot the replacment and keep the best one. So the replacment show up 9 days later. It is the AT 4410 tact version i 25 calliber. Everything that is supposed to come with it did. The tank is also full. And low and behold itz the QE version. Gun is currently listing for $480. I dont have 25 cal pellets nor have I ever shot a 25 cal. What do I do? Im really leary of rolling the Amazon return dice again but I feel unsure of switch caliber (Im mostly target shooting with small pest control. I dont hunt and would be hard pressed to shoot anything larger than a grey squirrel). Also does wally world sell 25 cal pellets? I need something quick if Im gonna keep this one.
 
Im in Western New York. Since our governors "safe" act a lot of the gun shops have folded. Guess Im gonna take a ride this evening and see what wally offers. I tossed the rifle up to my shoulder and like the fit and feel. I know a lot of you tubers love the 25 cal for pest control but im just leary of blowing chipmunk brains all over my yard. The Benny wildfire i use now already put a pellet thru the head as it is.
 
Many years ago, when I was a peace officer, somebody asked me why I carried a .45 instead of a 9mm. My response was that they didn't make a .50. I love my .25, and it also opens up dispatching of larger animals as well. Once it cools off here in Texas, I'm going to shoot an axis deer in the head with it. My wife hates them eating her shrubs, and they taste good as well. 
 
Thanks all for the advise and help. The rifle is on its way back. The tact style just didnt fit me. I had a raw spot on my thumb knuckle where the pistol grip was rubbing funny. The safety is not easy to reach the way I was holding and to switch was very uncomfortable. The adjustable stock was too rattley and loose for my taste and the shot count was too low [18]. Shot group with a scope at 20 yards was 2 inches (i know the Benjamin pellets were not the ideal pellets). About the only thing I liked upon shooting it was the reduced noise. I tried to contact Amazon about it but all they said was they would replace it with another. I decided just to give up and keep the original 177 and the orings and fill probe and degasser from the 25 and send the rifle itself back. All Im out at this point is a couple of magazines. The 177 shoots so much better and feels so much more natural in my hands that it is the way for me to go. This is the 3rd air gun purchase from amazon and the first one was a springer that had been used (sold as new) that Amazon corrected and had the replacment sent to me in 3 days. The second was from a 3rd party vendor and was perfect. Then this mess. 9 days to get my incorrect replacment. Good thing the original rifle was such a good deal. Im pretty much done with Amazon for air gunning supplies. I just dont have the patience for major screwups.