Theme park vouchers

JMT21

I'm looking at going to flamingo land with family this weekend we would need to buy 5 standard adult tickets and one child would get in free due to being under 3. Tickets are priced at £37 for anyone aged 3 years and over. I have found a voucher code for buy one adult ticket get a child ticket free?? Adult and child tickets are classed as the same according to the website price list? Would the free ticker give one person regardless off age free admission or does anyone have any other voucher codes please

Browntoa

Flamingo Land up to 15% off onlineBook online for discounted entryBook ahead
Book online at Flamingo Land to get up to 15% off ticket prices. You'll need to print your tickets and bring them with you on the day.
Online prices for the Yorkshire attraction are £31 for an adult or child ticket (£37 at the gate) and £100 for a family ticket (£116 at the gate, for 2 adults/2 kids or 1 adult/3 kids).