This is a difficult question to answer on the information you have given me as the answer is very fact dependent is several ways.
For example, a NOTICE TO FILE MISSING PARTS provides much more information than you just gave me.
First, I note that you state “$xxxx as an undiscounted entity”.
It seems you should qualify for a “small entity” and perhaps a “Micro Entity”
Small Entity fees are one-half the cost undiscounted entity fees. Micro Entity Fees are one-half the cost of Small entity fees.
For example, filing fees for undiscounted entities is $1,460 where as filing fees for a small entity are $730 and micro $400 (with no extra claims).
You do not have to file anything to get “Small Entity” status, just check the correct box during the electronic filing process.
One does need to file a form SB/15A and check the correct box during the electronic filing process to qualify for “Micro Entity” process.
A very simple form. http://www.uspto.gov/forms/aia_forms.jsp
Now your question:
You state: “I CHANGED all the claims and reduced the list to 26 claims”. But the USPTO still wants you to pay for the 44 claims.
Generally speaking all one has to do is file a PRELIMINARY AMENDMENT “canceling” the claims no longer desired. The word "canceling" is important.
You claim to have "reduced" the number of your claims, however, I have no way of knowing if you “reduced” your claims correctly.
First, there is a specific format for amending claims. I assumed you followed such format.
Second, how you “reduced” your claims is important. One can “reduce” the number of claims via a “withdrawal” or “Cancel”.
“Withdrawn” claims still count for fee purposes whereas “Canceled” claims do not.
Thus, if you had Claims 1-44, withdraw claims 27-44, you have not changed the fees due.
In contrast, if you had Claims 1-44 and CANCELED claims 27-44, now you only have 26 claims pending and the fees due change.
Thus, the answer depends on if you amended and reduced your claims correctly for the goal you wished to accomplish.
If you did, the USPTO should have sent you a new notice with a fee reduction.
Such is all I can do without actually reviewing your entire file wrapper as the answer to your question is very fact specific.
You can call the USPTO at(NNN) NNN-NNNN/strong>, Selection option “0”, and have your application number ready and they will review your file and be able to tell you specifically what you need to do.