I amended my return for CG, but now the tax includes both the CG tax and my refund, as if I must repay it. The amendment treats the refund as income. How do I fix this?

I sent the amended return by mail.

Upd. We identified where the mistake is in the printed amendment file.

However, I still cannot generate the correct document—the total is calculated incorrectly, and the support specialist confirmed this.

How can I get the correct version?