File C-Corp and Personal Tax together

[AlexG7]

I opened a C-Corp in April of 2021 and sent Form 8832 to the IRS to classify my Inc as a Disregarded Entity. After multiple attempts IRS claims they never got my mail even though it's marked "delivered" so I went to their office and got my request stamped to get a proof that it was received. Can I file my Business Tax together with Personal considering that the Form 8832 reached the final destination and I got the proof? 

[Mike9241]

to elect to be a disregarded entity it must be an

Eligible entity. An eligible entity is a business
entity that is not included in items 1, or 3
through 9

1. A business entity organized under a federal or state statute, or under a statute of a federally recognized Indian tribe, if the statute describes or refers to the entity as incorporated or as a corporation, body corporate, or body politic

3. A business entity organized under a state statute, if the statute describes or refers to the entity as a joint-stock company or jointstock association. 

4.  to  6. and 8. and 9. don't apply
7. A business entity that is taxable as a corporation under a provision of the Code other than section 7701(a)(3).

it would seem your C-Corp doesn't qualify to be a disregarded entity.

eligible entities

Partnership and limited liability companies. Some foreign corporations and U.S. owned foreign corporations depending on the jurisdictions. 

since the election is invalid, you have A C-Corporation return to file due 3/15/2022 for a calendar year C-corp