Are you (basically) describing a miscomunication?

1 A phono preamp (usually) does not have volume controls, balance, etc. and connects the cart to the "preamp" (2)
2 A preamp has volume controls, etc. and may or may not (these days) have a phono preamp built in
3 An integrated amp also has a preamp (see 2)
4 A power amp is only that- no volume, etc.

So- do you have 1 and 4 ?

And you needed 1 and 3 ?

Would the seller make a correction in your favor (since it sounds like you wanted 1 and 3 and he may have pushed you to 1 and 4 ?