City Cash Tax-Free is the name of the system created by innova taxfree group that allows tourists to get a refund of the tax for their purchases in advance. In order to guarantee that tourists complete the tax-free process after the cash refund is made by City Cash, the credit card of the client is taken as an assurance, making a 30-day pre-authorization that functions as a period to receive the TAX refund in advance. During this time, tourists must send by mail the Tax Free check sealed by customs to the innova taxfree group offices. If tourists don’t send the required document within the indicated time, 100% of the corresponding tax will be charge to their credit cards. Innova taxfree cancels the pre-authorization when receiving the sealed documents.