No Receipts If Audited Schedule C For 1040 ES?

Schedule C for 1040 ES? - no receipts if audited

I have appreciated the contributions for 1099 are revised. If you now claim deductions under the C program on the Form 1040 ES, if you do not) all receipts for business expenses (food, transportation, mobile phones, credit cards can be obtained as the extract, he opts for the IRS audit me?

If you used cash, and you do not get better no claim deductions for business expenses such as receiptless?

Thank you very much.