Did you send in 2 Amended returns separately? And did you wait until the first original return was fully processed and you got the first refund or paid a tax due? You should have waited for the first amended return to finish before amending the second time.
Or were both corrections on the same amended return? The amended return will only be the difference you get back or need to pay. You can confirm this by printing your amendment and looking at the 1040X. Line 18 should be your original refund amount and line 21 should be your additional refund. If you paid on your original return it will be on line 16 (but don't include any penalty on 1040 line 38). If there is an amount owed with the amendment, it will be on line 20.
